If a bacterial infection is sensitive to both penicillin and erythromycin, why is it generally not advisable to administer both antibiotics simultaneously?

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Erythromycin neutralizes the activity of penicillinErythromycin acts only outside the bacterial cellErythromycin increases the production of beta-lactamase enzymesPenicillin is effective exclusively against actively dividing bacteriaBoth antibiotics have identical mechanisms of action

Explanation

Penicillin targets bacteria that are actively growing and dividing, so using it alongside erythromycin, which may inhibit bacterial growth, can reduce penicillin's effectiveness. Therefore, combining these antibiotics is not recommended because penicillin requires bacterial cell growth to work properly.