Read the compound sentence.Dr. Burke wanted to trust her assistant with the secret formula but she was afraid her assistant was a spy.
A
Dr. Burke wanted to trust her assistant with the secret formula; but she was afraid her assistant was a spy.B
Dr. Burke wanted to trust her assistant, with the secret formula: but she was afraid her assistant was a spy.C
Dr. Burke wanted to trust her assistant with the secret formula but, she was afraid her assistant was a spy.D
Dr. Burke wanted to trust her assistant with the secret formula, but she was afraid her assistant was a spy.