What is the term for a group of proteins in serum that finish off the work of antibodies to destroy bacteria and other cells?

Drug categories matching. match the term in column 1 with the associated term in column 2. antihistamine antipsychotic analgesic antidiabetic anticholinergic beta-agonists anti-alzheimer ssri antianxiety corticosteroid cytotoxic antifungal antiviral quinolone cephalosporin rapid-acting insulin antiemetics anti-acidity antihyperlipidemics vasodilators antiarrhythmics calcium channel blockers beta blockers angiotensin ii receptor blockers diuretics digitalis preparations antiosteoporosis drug antiplatelet drug local anesthesia ipratropium simvastatin aricept dolasetron ciprofloxacin digoxin aripiprazole sotalol acyclovir valsartan hydralazine nsaid