The correct answer would be a. "Laughing and talking" is not a way to start a sentence.
A run-on is a sentence that is too long, and either has no, or incorrect punctuation. So, that wouldn't be it.
A comma splice is a sentence that has a uneeded comma. This, has none.
Therefore, the answer would be a.
You need to put more points if you want someone to do this for you
The stern is the back of the ship in this case. The bow if the ship is the front and the stern is the back.
Answer: have been
Explanation:
Because ‘Sarah and her sisters has gone’ doesn’t sound right, ‘Sarah and her sisters has been’ also sounds wrong and ‘Sarah and her sisters have been’ doesn’t really make sense
