Which of the following is a sentence fragment?

a. "I'm not doing all this for you."
b. "I'm doing it for your dead mother."
c. "Because you were her son."
d. "That's why I'm doing it."*****

I understand now.

C. "Because you were her son"

Yes, now you're right.

Thank you

You're welcome.

The sentence fragment is option c. "Because you were her son."

To identify sentence fragments, you need to understand what constitutes a complete sentence. A complete sentence consists of a subject and a predicate and expresses a complete thought. A sentence fragment, on the other hand, is an incomplete sentence that does not convey a complete thought.

In option a, "I'm not doing all this for you," we have a subject "I" and the predicate "am not doing all this for you." This forms a complete thought and is not a fragment.

In option b, "I'm doing it for your dead mother," we have a subject "I" and the predicate "am doing it for your dead mother." This also forms a complete thought and is not a fragment.

In option c, "Because you were her son," we only have a dependent clause starting with "because." It lacks the main clause, which would provide a complete thought. Therefore, "Because you were her son" is a sentence fragment.

In option d, "That's why I'm doing it," we have a subject "I" and the predicate "am doing it." This forms a complete thought and is not a fragment.

So, the correct answer is option c. "Because you were her son" is a sentence fragment.