94. 若二次函數f(x)=x2+bx+c對任意實數 x, f (x+8)=f (4-x) 恆成立,則 f (2)、 f (4 )、 f (8)的大小關係為何? (A)f (2)>f (4)>f (8)(B)f (2)>f (4)≧f (8)(C)f (2)<f (4)≦f (8) (D)f (2)<f (4)<f (8)