What is an example of a multiple$-$purpose approach?

A$.$ a tax attorney who assists clients with their income, estate, and gift tax planning

B$.$ a personal finance counselor who shows a client how to set up and live within a budget $($income and expenses$)$

C$.$ a stockbroker who advises a customer to buy multiple shares of common stock

D$.$ a preparer of income tax returns who suggests that a client establish an IRA

E$.$ Both C and D$.$