In the sentence below, a part of the sentence has been given in bold. Below are given alternatives to the bold part which may improve the sentence. Choose the correct alternative. Wherever no improvement is needed, choose ‘No correction required’ as the answer.

He's been above the weather for a few days and needs to rest.

Correct option is C

The correct phrase to use in this context is (c) "He's been under the weather" for a few days and needs to rest. "Under the weather" is an idiomatic expression that means someone is feeling unwell or sick.