下列经济现象中，具有资本主义生产关系性质的是 [ ]

A．农产品投入市场

B．小市镇的兴起

C．“机户出资，机工出力”

D．商人买田置地

______ made her put on weight so quickly was ______ she never limited her diet.

A．Which; /

B．What; when

C．What; that

D．That; what