The correct answer is $\boxed{\text{B}}$.
Meiosis is a type of cell division that results in four daughter cells each with half the number of chromosomes as the parent cell. Meiosis is essential for sexual reproduction, as it allows for the production of gametes (sperm or eggs) that have half the number of chromosomes as the parent organism.
Meiosis consists of two rounds of cell division, meiosis I and meiosis II. In meiosis I, the homologous chromosomes pair up and undergo crossing over, which is the exchange of genetic material between homologous chromosomes. This results in new combinations of genes in the daughter cells. After meiosis I, the daughter cells have one copy of each homologous chromosome.
In meiosis II, the daughter cells divide again, this time without any crossing over. This results in four daughter cells, each with one copy of each chromosome. The four daughter cells are genetically different from each other and from the parent cell.
Meiosis is a complex process that is essential for sexual reproduction. It allows for the production of gametes that have half the number of chromosomes as the parent organism, which is necessary for the creation of a new individual.