Imagine That Scientists Have Just Discovered a New Species in Which

Imagine that scientists have just discovered a new species in which the males put their lives at risk to have offspring,and the females do very little.Which sex should be more likely to be promiscuous,according to parental investment theory,and why

A)  males, because of the greater risk associated with reproduction 
B)  females, because of the effects of estrogen 
C)  males, because of the effects of testosterone 
D)  females, because of the lesser risk associated with reproduction