The correct option is A.
Dashes are used in sentences to show interruption is speech or to show a sudden break in a sentence. For instance: Will mummy - can she- find out what we have done?
Dash can also be used to give more detailed information about a particular thing. For instance: My boss - I mean, my former boss - wanted me to go out with him.<span />
You should add the suffix "ship"
You would have used B. context clues. The reasoning for this is you have used other words in the sentence and around this word to help you figure the meaning.