Vocabulary and Synonyms

Obsscure means not discovered or known about; uncertain. Option D directly states the opposite of being well-known.

Rash means acting or done without careful consideration of the consequences; impulsive. Option C captures this meaning of being thoughtless or hasty.

Handful in this context means a small quantity or number. Option A correctly captures this meaning of something being few or little in amount.

Rigid means stiff or unyielding; not flexible. Option C directly states this meaning.

Refund means to repay or pay back money that has been spent or lost. Option D correctly states this meaning.

Careless means not giving sufficient attention or thought to what one is doing; neglectful. Option C correctly captures this meaning.

Nymph in mythology refers to a spirit of nature taking the form of a young woman, often associated with fairies. Option D is the closest match among the options.

Shortage means a state or situation where something is insufficient or lacking. Paucity means exactly this - an insufficient amount.

Ideal means representing a perfect standard or model to be followed. Option B correctly captures this meaning of something that serves as a perfect example.

Infamous means well-known for some bad quality or deed. Notorious specifically means famous for something negative, making it the correct synonym. Other options like populous (many people), prosperous (wealthy), and deciduous (trees that shed leaves) are unrelated.

An incentive is something that motivates or encourages action, usually through a promised reward or benefit. Stimulation refers to something that excites activity or response, which captures the motivational essence of an incentive.

Impetuous means acting quickly without thought, characterized by sudden or rash action. Rash means acting or done without careful consideration, making it the correct synonym. Violent suggests force, pleasing suggests positive qualities, and freezing is completely unrelated.

Immune means protected or exempt from something, especially a disease or obligation. Exempt means free from an obligation or liability, which matches the meaning of immune. The other options (statutory, hostile, disturbing) don't convey this sense of protection or exemption.