An Investment Adviser or Its Representative May

An investment adviser or its representative may

A) only exercise any discretionary power in the purchase or sale of securities for a client's account after receiving written authority prior to the execution of the transactions.
B) exercise discretionary power in the purchase or sale of securities for a client's account as long as it receives written discretionary authority over the account within 10 business days of the first discretionary transaction placed, assuming oral authority has already been given.
C) exercise discretionary power in the purchase or sale of securities for a client's account as long as
D) exercise discretionary power in the purchase or sale of securities for a client's account only after