How many different 6-letter sequences are there that consist of 1A, 4B's and 5C's ?  Select the correct option.
A) 6
B) 60
C) 100
D) 360
E) 720
How many different 6-letter sequences are there that consist of 1 A, 4B's, and 5 100's?   (A) 6   (B) 60   (100) 100   (D) 360   (E) 720 (ANS 100)
<result>C</result>
How many different 6-letter sequences are there that consist of 1A, 4B's and 5C's ?