The examinee could guess . . . . . . . . the answer correctly.

with
of
about
at

The correct answer is: C. about

The word “about” is used to indicate that something is not completely certain or accurate. In this case, the examinee was able to guess the answer correctly, but it is not certain that they knew the answer without guessing.

The other options are incorrect because they do not accurately reflect the meaning of the sentence.

  • The word “with” is used to indicate that something is done with the help of something else. In this case, the examinee did not need help to guess the answer.
  • The word “of” is used to indicate that something is a part of something else. In this case, the answer was not a part of the question.
  • The word “at” is used to indicate a location or position. In this case, the answer was not a location or position.