An antigen preparation and an antibody preparation are tested by immunodiffusion. Three bands are found, indicating that

Question: An antigen preparation and an antibody preparation are tested by immunodiffusion. Three bands are found, indicating that
[A].

there was more than one antigen

[B].

the antibody was impure

[C].

the temperature was too high

[D].

there was one antibody and one antigen

Answer: Option A

Explanation:

No answer description available for this question.