He said, “Can you sing?” And I said, “No”.The given sentence shows the
Right Answer is: B
The given sentence shows the conversation between two people. The reported speech starts with modal verb “can” here. So, we will use “if/whether” in indirect speech to connect the reporting and reported speech. “Can” would change to “could”. “No” is a short form of saying “I cannot”. So, while changing the given sentence, it will change to “could not”.
Hence, option B is the correct answer.