Antonyms

Accretion is  accumulation, growth, addition, buildup. Attrition is the act or process of wearing away or grinding down by friction i.e. erosion, hence the antonym of accretion. Hence, (C) is the answer.

Encomium is a formal expression of high praise; eulogy. Scurrility is the quality of being scurrilous; coarseness or indecency of language, esp. in invective or joking i.e. to insult. Hence, (A) is the answer.

Panegyric refers to high or hyperbolic praise; laudation. Harangue REFERS to a long, blustering, noisy, or scolding speech; tirade; Hence, (A) is the answer.

Mercenary means working or done for payment only; motivated by a desire for money or other gain; venal; greedy. Eleemosynary is of or for charity or alms; charitable. Hence, (E) is the answer.

Crotchety is full of peculiar whims or stubborn notions; cantankerous; eccentric. Complaisant means willing to please; affably agreeable; obliging. Hence, (C) is the answer.

Exculpate is to free from blame; declare or prove guiltless. Incriminate is to charge with a crime; accuse. Hence, (C) is the answer.

Callous is lacking pity, mercy, etc.; unfeeling; the impassive. Sentient is of, having, or capable of feeling or perception; conscious. Hence, (D) is the answer.

Ode refers to orig., a poem written to be sung; in modern use, a lyric poem, rhymed or unrhymed, typically addressed to some person or thing and usually characterized by lofty feeling, elaborate form,    and dignified style Doggerel is trivial, awkward, monotonous rhythmic verses; any trivial or bad poetry. Hence, (C) is the answer.

Laconic is brief or terse in speech or expression; using few words. Pleonastic is the use of more words than are required to express an idea; wordy, redundant. Anarchistic is one who does not follow law. Hence, (A) is the answer.

Hebraic is of or characteristic of the Hebrews or their language or culture; Hebrew i.e. Jewish. Pagan is of pagans (a person who is not a Christian, Muslim, or Jew; heathen) or paganism; not Christian, Muslim, or Jewish. Hence, (B) is the answer.

Avalanche is any large, overwhelming quantity that comes suddenly. Exiguity is scanty; little; small; meager; hence fits our prediction as the antonym for avalanche. Simmer is to boil. Hence, (D) is the answer.

Qualm is a sudden feeling of uneasiness or doubt; a twinge of conscience; scruple. Credence is confidence, belief, faith. Hence, (A) is the answer.

Quiddity is The real nature of a thing; the essence transcendence is to go beyond the limits of; overstep; exceed.  Hence, (D) is the answer.

Plebeian is a member of the ancient Roman lower class; one of the common people Patrician is a member of any of the ancient Roman citizen families; any person of high social rank; aristocrat. Hence, (B) is the answer

Crass is grossly stupid, dull, or obtuse; unrefined, coarse. August is eminent, venerable, regal; refined Corpulent is fat, obese. Hence, (A) is the answer.