设函数f(x)＝e^x＋x－2，g(x)＝ln x＋x²－3.若实数a，b满足f(a)＝0，g(b)＝0，则  (　　)．

A．g(a)<0<f(b)	B．f(b)<0<g(a)
C．0<g(a)<f(b)	D．f(b)<g(a)<0