Answer:
c. hydrophobic
Step-by-step explanation:
Hydrophobic domains will aggregate. Hence another hydrophobic substance will like to be together with the hydrophobic active site. The active site is an enzyme region where the molecules of substrates bind and undergo a chemical reaction. The active site consists of residues which form temporary substratum bonds (binding site) and residues that catalyze a substratum reaction (catalytic site)