The correct answer is (c) Asparginase
To explain: Asparginase is used in the treatment of acute lymphocytic leukemia. Tumor cells lack aspartate-ammonia ligase activity which restricts its ability to synthesize L-aspargine. Asparginase helps to extract L-aspargine from body fluids. Asparginase activity does not affect the functioning of normal cells which are able to synthesize on its own, but reduce the free exogenous concentration and so induces a state of fatal starvation in the susceptible tumor cell. Trypsin is used in the treatment of inflammation. Lysozyme is used as an antibiotic. Streptokinase is used in the treatment of blood clots.