Using all the letters of the word "HEAD", how many words can be formed, which begin with H and end with D?  Options:
A) 8	B) 4	C) 2	D) 7	E) 9
There are five letters in the given word.   Consider 4 blanks ....   The first blank and last blank must be filled with H and D all the remaining three blanks can be filled with the remaining 2 letters in 2! ways.   The number of words = 2! = 2.   Answer:2
<result>C</result>
Using all the letters of the word "HEAD", how many words can be formed, which begin with H and end with D?