The key feature of a "family of mutual funds" is

	A.	to be able to add funds on a regular basis such as with a 401K retirement plan.
	B.	the ability to shift from one mutual funds management company to another.
	C.	the ability to shift quickly from one type of mutual funds to another with little or no cost and without rolling over 401K monies.
	D.	to be able to diversify an investment portfolio.