Answer
D
Work Step by Step
Scientifically speaking, serology is the study of blood serum. In practice, it refers to antibody-antigen reactions done in the lab for diagnostic purposes.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.