The correct option is C Cytokinin and Auxin
Answer is option C i.e. "Cytokinin and Auxin"
The auxin and cytokinin levels increases in the seed during it's development. They help in the growth of the fruit, phases of cell division and cell expansion inside the fruit. The seeds and fruits are rich source of hormones such as auxin and cytokinin. These hormones are responsible for the growth of the tissues present in the fruits and helps in determining the fruit size.