In the following sentences, the incorrect part of the sentence is underlined. Choose an alternative from the four given options so that the sentence is rendered correct.

His talk on heritage sites has picked up my interest.

"Aroused my interest" is a standard English collocation meaning "made me feel interested." Just like we say "aroused curiosity" or "aroused suspicion," we say "aroused interest."

The original phrase "picked up my interest" is incorrect because "picked up" does not pair with "interest" in standard English.

Why not the others?

• Option 1: "brightened" → We say "brightened my day," not "brightened my interest."
• Option 3: "adopted" → "Adopted" means to take something as your own (like a habit or a child). It doesn't go with "interest."
• Option 4: "caught" → The standard phrase is "caught my attention," not "caught my interest."

Hence, Option 2: "aroused" is correct.