For how many integers n is 1^n+3 = (n+3)^1? Choose the correct choice from the following.
A) None of these	B) 1	C) 2	D) 3	E) 4
If n=0   1^0+3= (0+3)^1   1^3 = 1 ; 3^1 =1 not ok   If n=1   1^1+3 =1 ; (1+3)^1=3^1=3 not OK   So, None of thesenswer : None of these
<result>A</result>
For how many integers n is 1^n+3 = (n+3)^1?