The correct answer would be B)through meiosis only.
Any mutation in human being can pass onto the next generation only when it is present in germ cells.
Germs cells are the cells which lead to the formation of gametes (sperm in males and egg in females) through meiosis. It results in the formation of four haploid cells (gametes) from a single parent germ cell.
Mutation in somatic cells (divide by mitosis) will pass onto the daughter cells in the organism but will pass on to the next generation.
Hence, meiosis is the process by which a mutation may pass onto next generation in human beings.
a) through mitosis only.
b) through me...