Select the correct Active/Passive form of the given sentence. The professor said that nobody could solve that problem.

The professor said, “Nobody can solve that problem.” The professor said, “Nobody can solve this problem.” The professor told, “Nobody could solve this problem.” The professor said, “Nobody can solved this problem.”

The professor said, “Nobody can solve this problem.”

Ans-2, Explanation: It is an indirect statement therefore reverse rule is followed here vide which ‘could’ and ‘that’ will be replaced by ‘can’ and ‘this’ respectively.