In a Direct ELISA Test,the Method Is Determining If ________

Multiple Choice

In a direct ELISA test,the method is determining if ________ is/are present in the patient's sample by attempting to bind a labeled antibody to it.

A) antibodies against a pathogen found in a patient's blood
B) an antigen from a particular pathogen
C) a bacteriophage that can infect a particular bacterial strain
D) a known sequence of DNA from a pathogen