The correct answer is: E. No error
The sentence is grammatically correct. The subject and verb agree, and the tense is consistent throughout. The sentence is also clear and concise.
Here is a brief explanation of each option:
- Option A: The foremost criterion of selection we adopted were the number of years of training.
This option is grammatically correct. The subject and verb agree, and the tense is consistent throughout. However, the sentence is wordy and could be improved by removing the word “were.”
- Option B: were the number of years of training
This option is grammatically incorrect. The subject and verb do not agree. The subject is “criterion,” which is singular, but the verb is “were,” which is plural.
- Option C: a dancer had received
This option is grammatically correct. The subject and verb agree, and the tense is consistent throughout.
- Option D: under a particular guru.
This option is grammatically correct. The sentence is clear and concise.
Therefore, the correct answer is E. No error.