Choose the correct sentence: If anyone thought so, they were wrong, If anyone thought so, they are wrong, If anyone thought so, he is wrong, If anyone thought so, they went wrong.

If anyone thought so, they were wrong.

If anyone thought so, they are wrong.

If anyone thought so, he is wrong.

None of these

"Anyone" is singular, so it should be followed by "he" instead of "they" for correct subject-verb agreement.

"Is wrong" is appropriate because the statement is a general truth, requiring the present tense.