For how many integers n is 1^n+2 = (n+2)^1?
Choose the correct choice from the following answers.
A) 0	B) 1	C) 2	D) None of these	E) 3
If n=0   1^0+2 = (0+2)^1   1^2 = 1 ; 2^1 =2 not ok   If n=1   1^1+2 =1 ; (1+2)^1=3^1=3 not OK   So, Answer : None of these
<result>D</result>
For how many integers n is 1^n+2 = (n+2)^1?