Question

Select the correct option: The professor's remarks were so dense with jargon that they bordered on

• A. opacity
• B. opaque
• C. opacus
• D. opalescent

Answer 1

Answer:

A. opacity

• The sentence requires a noun to follow the preposition "on". • Opacity is the noun form, meaning the quality of being obscure or difficult to understand. • "Opaque" is an adjective and does not grammatically fit the phrase "bordered on [noun]".