Parts of Speech

Call off means to cancel something.

Capitalize on/upon means to take advantage of something. 

Carry off means to win something. 

Cash in means to make advantage of something in wrong way. 

Carry out means to do something as said earlier. 

Carve up means to divide something into small parts. 

The correct answer is A. An apostrophe is a noun in grammar - it refers to a punctuation mark (') used to indicate possession or contractions, and also a rhetorical device where a speaker addresses an absent or imaginary person. In the context of parts of speech, the word 'apostrophe' itself is a noun. Verbs indicate actions, adjectives describe nouns, prepositions show relationships, and adverbs modify verbs.

Apology is a noun because it names a thing - specifically, an expression of regret for a mistake or offense. Nouns identify people, places, things, or ideas, while verbs express action, adjectives describe, and adverbs modify.

Apologize is a verb because it expresses an action - the act of expressing regret or saying sorry. Verbs show actions or states of being. The -ize ending is common in verbs that transform words into action forms.

Apparent is an adjective because it describes the quality of being clear, visible, or obvious. Adjectives modify nouns by answering what kind or which one. Apparent describes how something appears or seems.

Apparently is an adverb because it modifies verbs, adjectives, or other adverbs. The -ly ending is a strong clue - most words ending in -ly are adverbs. Apparently means evidently or visibly, modifying how something is perceived.

Appalling is an adjective because it describes something as shocking, horrifying, or extremely bad. Adjectives describe qualities of nouns. The -ing ending can indicate an adjective (present participle) derived from the verb appall.

Appear is a verb because it expresses an action or state - to become visible or come into sight. Verbs show what something does. Appear is the base form you would use with I, you, we, they.

Appealing is an adjective because it describes something as attractive or interesting. Adjectives describe qualities. Though ending in -ing, it functions as an adjective here (a present participle used as a descriptor), not as a continuous verb.

Clever is an adjective because it describes the quality of being intelligent, quick-witted, or resourceful. Adjectives describe nouns by answering what kind. Clever describes a person's mental qualities.