The answer would most likely be C, because all the other options have to do with a job or manufacturer.
Even though I've always been food at math, it's not my favorite subject.
C.
Complete Sentence
I dropped my phone three times on my into the building, it didn't break.
B.
Run-On
Andrea's brother has two children, her sister has four children.
C.
Complete Sentence
I am almost finished with college, my dream is to open my own business.
B.
Comma Splice
Alisha passed her licensing exam last week.
C.
Complete Sentences
He was using his body language and gesticulation to make a digresion and push the speach in a new direction for a brief amount of time. Digresion is commonly used in public speaking when one is giving and example, introducing new topic, bringin a guest in, and so on.