单项选择题
若f(x)=-f(-x)，在(0，+∞)内f’(x)＞0，f"(x)＞0，则f(x)在(-∞，0)内______．
A．f’(x)＜0，f(x)＜0
B．f’(x)＜0，f"(x)＞0
C．f’(x)＞0，f(x)＜0
D．f’(x)＞0，f"(x)＞0
B．f’(x)＜0，f"(x)＞0
C．f’(x)＞0，f(x)＜0
D．f’(x)＞0，f"(x)＞0
