Question

HELP PLS Which answer choice best corrects the run-on sentence?

I need to study for the geography exam I need to improve my grades.


I need to study for the geography exam, I need to improve my grades.

I need to study for the geography exam because I need to improve my grades.

I need to study. For the geography exam I need to improve my grades.

I need to study for the geography exam I need. To improve my grades.

Answer 1

I need to study for the geography exam because I need to improve my grades.

Step-by-step explanation:

None of the other answers portray grammatically correct full sentences.