Explanation:

- Section 290 Cr. P.C.: Relates to evidence, specifying how documents certified by designated officers can be used in the course of a trial.

- Section 394 Cr. P.C.: Deals with the abatement of appeals except in certain cases. It highlights how appeals are affected if the appellant dies.

- Section 395 Cr. P.C.: Provides the procedure for referring to the High Court in cases where a difficult legal question arises in a trial.

- Section 222 Cr. P.C.: Pertains to the charge of a trial, allowing for the inclusion of additional charges when the facts constitute the main charge and a minor offense.

Correct Answer: Option 3 - Section 395 Cr. P.C.

.