4^b + 4^b + 4^b + 4^b =	Choose the correct choice from the following answers.
A) 7^b	B) 4^(b + 1)	C) 7^(7b)	D) 8^b	E) 49^B
Easy one.   4*4^b = 4^(b+1)   Ans. 4^(b + 1)
<result>B</result>
4^b + 4^b + 4^b + 4^b =