In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

To have a nodding acquaintance

Know somebody/something slightly

The correct answer is option 3- Know somebody/something slightly.

"To have a nodding acquaintance" means to be familiar with someone or something, but only in a very casual or superficial way. It implies that you recognize or know the person or thing, but you don't have a deep or close relationship with them. It's like seeing someone occasionally and exchanging nods of acknowledgment, but not having much interaction beyond that. Similarly, it can refer to being familiar with a topic or subject, but only in a basic or limited manner, without in-depth knowledge or understanding.