The phrase “the sea captain was an old salt” uses which of the following devices?

An idiom

Explanation:

An idiom is a group of words which have a different meaning when used as a group than individually.

For example, saying, "Get off my back!" does not mean that someone is literally on your back but it means the person should stop bothering you.

From the phrase, "The sea captain was an old salt" does not mean that he is a salt but it means that he is a veteran sailor who has sailed for many years.

c) in the address bar

explanation:

this is the only place where url's may be found or entered in to successfully get to a web page.

c is a symbol. when bernice gets her hair cut, it is the authors way of showing the affects and demands of pier pressure and the over-all attitudes of people at the time.