The correct answer is A. Mitosis.
Mitosis is a type of cell division that results in two daughter cells that are genetically identical to the parent cell. It is responsible for the growth and repair of tissues in the body.
Meiosis is a type of cell division that results in four daughter cells that are each half the number of chromosomes as the parent cell. It is responsible for the production of gametes (sex cells) in animals and plants.
Regeneration is the ability of an organism to replace lost or damaged tissues or organs. It is not a type of cell division.
Therefore, the only option that is responsible for the continuity of hereditary information is mitosis.