My teachers can but I do believe everyone’s is different
Lieutenant is not a part of the main clause, and it is an address to a person that is inserted into the sentence. It must be therefore separated by comas on both sides: the correct answer is a.
The answer is B since because it is combining two sentences together
<span>The sentence written correctly looks like:
Row five miles down the river; be careful in the shallow areas.
</span>
That is because "Row five miles down the river" and "be careful in the shallow areas" are both independent phrases.
They can be joined together by either a period, or a semicolon. You can also join it using a comma and a conjunction.
The correct answer is B. river<span>.</span>
