The correct option is C Thiamine
Thiamine is a water-soluble B vitamin. It is also called B1.
Ferredoxin is a small protein containing sulphur and iron and helps in the transfer of electrons during the light reaction of photosynthesis.
Cytochrome is an iron-containing protein involved in the electron transport during oxidative phosphorylation.
Catalase is an enzyme that catalyses the breakdown of hydrogen peroxide into water and oxygen.