A quick question with regards to Insurance agency agreements?

[m1998cm]

In the absence of an agency agreement, when is an agent required to render an account for money held on behalf of his or her Principal?

The possible answers are:
1) At the end of the financial year
2) Periodically at their own discretion
3) Whenever the Principal requires it
4) At the end of the Principal's financial year

Any help on this subject will be greatly appreciated.

Thankyou