How can friends be both positive and negative influences in regard to tobacco

Some of your friends could help you regard tobacco. other friends wouldn't want you to stop 

Your dog can sniff at or even eat a bit of catnip. the herb is edible and not harmful. just don't expect them to roll around like a cat would! your dog may scrutinize catnip by licking and smelling at it, or be totally indifferent to this stimulant.

The answer is d because , safety almost always works, to prevent stds and pregnancy