Read each sentence to find out whether there is any grammatical error or idiomatic error in it. The error, if any, will be in one part of the sentence. The letter of that part is the answer. If there is 'No error', the answer is '( e )'. (ignore errors of punctuation, if any).
`underset((a))ul("The area was plunged into")//underset((b))ul("darkness mid a wave of")//underset((c))ul("cheering and shouting")//underset((d))ul("slogans like 'Save The Earth'.")//underset((e))ul("No error")`

Explanation

(b) Replace .mid. by .amidst.