The correct options are
A Mitosis results in two diploid cells.
B Meiosis occurs during gamete formation.
D Meiosis results in four haploid cells.
Mitosis results in two cells that are genetically similar to the parent cell. It takes place during growth, regeneration of cells, etc.
Meiosis results in four haploid cells. These cells are genetically different from each other and from the parent cell. It takes place during gamete formation.