Question

Which of the following is a complete sentence?

A) because I had not slept for hours.
B) since she was hungry, she had a snack.
C) although Henry was unusually tall.
D) even when the tempatures improved.

Answer 1

The answer would be B. Answers A, C, and D are fragments of a sentence, lacking a complete idea.

Ex:
A) "because I had not slept for hours" - "because" what? An example of a complete version of this sentence would be "My head hurts because I had not slept for hours."