The news headline "Consultants replacing high school counselors" deals with the question$($s$)$ of economics.

A$.$ how

B$.$ what and how

C$.$ for whom

D$.$ what and for whom

The news headline "Wal$-$Mart to carry 'morning$-$after' contraception," deals with the question$($s$)$ of economics.

A$.$ for whom

B$.$ what and how

C$.$ what

D$.$ how

The news headline "Software helps the illiterate find work" deals with the question$($s$)$ of economics.

A$.$ what and for whom

B$.$ how

C$.$ what

D$.$ what and how