The correct option is C Serology
Haematology :
It is the study of causes, treatment and prevention of blood related diseases.
Serology :
Serology is the study of interaction between an antigen and an antibody.
Cryobiology :
It is the study of the effect of low temperatures on living systems.
Angiology :
It is the study concerned with the circulatory and lymphatic systems.
Final answer :
(B) Serology