Final answer:
Quinine and Clindamycin are antimicrobials that can be used to treat malaria. Quinine is a traditional antimalarial and Clindamycin is an antibiotic with antiprotozoal activity.
Step-by-step explanation:
Among the options listed, the correct antimicrobials that could be used to treat malaria are Quinine and Clindamycin. Quinine has been used as an antimalarial drug for a long time and even though its efficacy may diminish over time due to resistance, it remains a treatment option. Clindamycin, an antibiotic with significant antiprotozoal activity, can also be used to treat malaria, especially when paired with quinine. Other drugs mentioned, such as Oxacillin (used for bacterial infections), Acyclovir (an antiviral drug for herpes), and Quinolone (which can include antimalarial drugs but the term itself is broad and not specific to the antimalarial class), have different primary uses.