You are required to give an explanation (A) for your conduct (B) within two days of the receipt of this letter. (C) No error (D)
This sentence was asked in my exam under the tag of error spotting questions. Is the sentence correct? I am sceptical for part C, I googled for the phrase within two days of the receipt of this letter and found a result in Google Books where the preposition used was from instead of of, so the correct sentence should be with from instead of of. Am I correct or is it fine with of as well?