When would it be acceptable to deposit and maintain broker funds in a trust account?

a)if the funds are documented in the trust account records and are held for a period not to exceed 60 days

b)if the funds are used to cover bank service charges and the amount is clearly nominal

c)if the funds are used to cover bank service charges and the amount does not exceed $10

d)under no circumstances; broker funds may never be deposited of maintained in a trust account