Which of the following is a run-on sentence?

a. the players continue to work on both hitting and fielding, allowing them to improve both skill sets.
b. while the rain was drenching at times, the fans were dedicated and refused to leave.
c. the game will be called if the storm continues, the weather is dangerous.
d. the game was tied at halftime; each coach gave his team a pep-talk.

to me i think class room sitting education is better. i do online school and i have not learned a think haha. when i sit in the classroom i just sit there and kind of pay attention but still i get so far ahead in the class when im doing online i have nothing else better to do but play video games and i sit in school and learn and have friends and just actually learn. when i'm doing online i sit here listing to music and get on and and look up the answers i guess that is my fault for being a cheater. but to be honest i think sitting in the classroom is better.

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