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Which is a correctly written sentence, not a run-on?

Athe ferry leaves for the island in fifteen minutes; we need to hurry to catch it.
Bthe library has a good selection of books and movies we borrow some every week.
Cthe train left the station at 3 o'clock it should be arriving in town any minute now.
Dthe summer concert series in the park starts thursday we plan on going every week.