设X~N(μ,42),Y~N(μ,52),p1=P(X≤μ-4),p2=P(Y≥μ+5),则()
A.对任意实数μ,都有p1=p2
B.对任意实数μ,都有p1<p2
C.只对μ的个别值,才有p1=p2
D.对任意实数μ,都有p1>p2