A recombinant DNA was constructed by inserting the DNA of interest into the AmpR gene of a pBR322 vector. The vector also contains a TetR gene that is not interrupted. After introducing the recombinant DNA into bacterial cells, the resulting transformants were tested on a variety of media. Which of the following results would be expected?A)no growth on either ampicillin or tetracycline containing mediaB) growth on ampicillin but not tetracycline containing mediaC) growth on tetracycline but not ampicillin containing mediaD) growth only on media containing both antibioticsE) growth on both ampicillin containing media and tetracycline containing media