请教一题，请牛牛帮忙

The three women, liberal activists who strongly support legislation in favor of vivil rights and environmental protection, have consistently received labor's unqualifying support.

B. are consistently receiving the unqualifying support of labor

C.have consistently received the unqualifying support of labor

D.receive consistent and unqualified support by labor

E.are receiving consitent and unqualified support by labor.

请各位看看选啥啊，为啥啊？谢谢。