How many different ways can you select a pilot and a co pilot if you have 90 people to choose from?  Pick:
A) 199 B) 200 C) 398 D) 4950 E) 8010
90P2= 90!/(90-2)!=8010   8010
<result>E</result>
How many different ways can you select a pilot and a co pilot if you have 90 people to choose from?