Explanation:
> "Don't study on the examination day? What did he tell you? He told me ____ on the examination day."

The sentence is reporting what someone told the speaker, so it requires an infinitive construction after "told me."

Now, let's look at the options:

- A. no studying — This phrase is not grammatically correct in this context. Incorrect.
- B. don't study — This is the direct form of the instruction, but after "told me," we need an infinitive form, not an imperative. Incorrect.
- C. not study — This is closer but still doesn't fit the grammatical structure we're looking for. Incorrect.
- D. not to study — This is the correct structure. After "told me," the correct form is "not to study," which is the negative infinitive. Correct.
- E. to not study — While this is commonly used in informal speech, the more standard form after "told me" is "not to study." Incorrect.