Answer:
A. My alarm stopped (Could the battery be dead already?) and made me late for school.
Explanation:
Parentheses are one of the tools we can use to enclose extra information in a sentence, like a comment, an explanation, a description or an example that briefly interrupt a sentence, so they never begin a sentence. Since parentheses enclose extra information, they can be removed, and the sentence would still make sense. Likewise, there are a few rules to use them, some of them include not to over-use them as they can be distracting and not to put any punctuation mark before parentheses.
Option A is the correct answer because it abides with all the previous rules, while the other sentences do not.
