If the rational number x equals its opposite and the rational number y equals its reciprocal, then y ^ 2008 + x ^ 2009= A 0 B 1 C -1 D 2 write the reason!

If the rational number x equals its opposite and the rational number y equals its reciprocal, then y ^ 2008 + x ^ 2009= A 0 B 1 C -1 D 2 write the reason!

x=0
y=1 y=-1
Y^2008+X^2009=1
B 1