Which option correctly combines the following sentences into one complex sentence using a semicolon and conjunctive adverb? “She studied hard. She still didn’t pass the test.”

A. She studied hard; however, she still didn’t pass the test.

B. She studied hard however; she still didn’t pass the test.

C. She studied hard; however she still didn’t pass the test.

D. She studied hard, however; she still didn’t pass the test.