Which of the following terms means study of serum? (A) Serologist (B) Serous (C) Serology (D) Seroma

To determine which term means "study of serum," let's analyze each option: (A) **Serologist** - This refers to a person who studies serum, particularly in the context of blood tests and immune responses. (B) **Serous** - This term describes a type of fluid that is clear and watery, often related to serous membranes in the body, but it does not refer to the study of serum. (C) **Serology** - This is the scientific study of serum, especially in relation to the immune response in the body. It involves the analysis of blood serum to detect antibodies or antigens. (D) **Seroma** - This term refers to a collection of serum that can accumulate in a tissue space, usually after surgery or injury, and does not pertain to the study of serum. Based on this analysis, the correct answer is: **(C) Serology**