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 />
Musket
Muskets are long and that’s what they used back then
We can't push each other but that very fact kept getting pushed into my thoughts.
The billboard presides over The Valley of Ashes.