Explanation:

- Option 1: The court may proceed to pronounce judgment.

- This option reflects the power given under O. 8, r10 where, if the defendant fails to file a written statement, the court is allowed to pronounce judgment.

- Option 2: The court may make such order in relation to the suit as it may think fit.

- This indicates the court's discretion to decide on any suitable order concerning the suit, providing flexibility based on case circumstances.

- Option 3: Either (A) or (B).

- This option suggests that the court has the choice to either pronounce judgment directly or take another suitable action.

- Option 4: None of these.

- This implies neither of the first two options is correct, which is not the case here.

- Correct Answer: Option 3: Either (A) or (B).