Final answer:
Penicillins, carbapenems, cephalosporins, and vancomycin are all bactericidal as they target and disrupt bacterial cell wall synthesis leading to bacterial cell death.
Step-by-step explanation:
The drug targets of penicillins, carbapenems, cephalosporins, and vancomycin are all bacterial cell wall synthesis, which result in their bactericidal effects. These antibacterial drugs function by disrupting the synthesis of peptidoglycan, an essential component of bacterial cell walls, leading to osmotic lysis and death of the bacterial cells. The correct answer to whether these drugs are bactericidal or bacteriostatic is A) Bactericidal.