Explanation:

Here's a quick summary of each option regarding the use of answers to interrogatories in trials based on the Code of Civil Procedure:

- Option 1: Order 11, Rule 22

- Deals with making and answering interrogatories.

- Specific rules on how interrogatories can be used, including their use at trial.

- Correct Answer

- Option 2: Order 4, Rule 13

- Related to institution of suits and written statements.

- Does not address interrogatories.

- Option 3: Order 6, Rule 10

- Pertains to pleadings generally.

- Not relevant to interrogatories.

- Option 4: Order 13, Rule 22

- Concerns production, impounding, and return of documents.

- Not specifically about interrogatories.