C. On several occasions.
Because they are telling you information based on a claim, informing you why. It is evidence, therefore an example.
Answer:These stages are as: (1) "collection of a sample of learner language, (2) identification of errors, (3) description of errors, and (4) explanation of errors".
Explanation:
The theme that distinguish literature written in the realist era from earlier literature is everyday life and common subjects. The correct answer is A.
