Spot the error in the following sentence.
A. We discussed about the concept so thoroughly
B. on the eve of the examination
C. that I found it very easy to work it out.
D. No error

A

The error is in option A. The correct sentence should be:

A. We discussed the concept so thoroughly

Explanation for each option:

☀ A: The error is in option A. The word "about" should be removed after "discussed." The correct phrase is "We discussed the concept so thoroughly." "Discuss" does not require the preposition "about."

☀ B: There is no error in option B. The sentence is grammatically correct: "on the eve of the examination."

☀ C: There is no error in option C. The sentence is grammatically correct: "that I found it very easy to work it out."

☀ D: The statement "No error" is incorrect because the error is in option A, as explained above.