Which answer choice correctly uses a semicolon to punctuate a compound sentence?

Mrs. Anderson flies to Sweden tomorrow her plane leaves at 2:00 p.m. Mrs. Anderson flies to Sweden tomorrow; her plane leaves at 2:00 p.m. Mrs. Anderson flies to Sweden tomorrow her; plane leaves at 2:00 p.m. Mrs. Anderson flies to Sweden tomorrow, her plane leaves at 2:00 p.m.