What is the tone of the passage about fast foods

A．Since fast foods have less nutrition, people should try their best not to eat them.
B．The fast food industry is taking advantage of small families with working wives.
C．Fast foods taste good though they have too much fat.
D．Since Americans are faced with a growing fast food industry, they should remember some basic facts about it.

A．eat salad, vegetables and fruit during other meals
B．eat salad, vegetables and fruit with fast foods
C．put some potatoes on your hamburger
D．select a nutritious drink