[Adsy]

Hi, I'm in the process of writing my thesis, and as a molecular biologist I am not so good at chemistry I am describing a method I used in my project and I kinda got stuck on the following chemical reaction.

4-aminoantipyrine reacts with 4-hydroxybenzoic acid in presence of hydrogen peroxide and peroxidase to produce a quinoneimine dye.
Everything is clear, with exception to the structure of the product compound. I have searched the internet for an example of use of 4-hydroxybenzoic acid in the reaction without success. All I can find is the reactions with phenol.

4-aminoantipyrine:


Will the product look like A, B or C?
A:

---
B:

---
C: