Indeed, men are absolutely indispensable right now, invisible as it is to most feminists, who seem blind to the infrastructure that makes

The complete words for this sentence would be:

 their own work lives possible

This belongs to the article entitled “It’s a Man’s World, and It Always Will Be”, which explains the modern economy of the male and the productivity of women as a whole. 

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;