Many diploid organisms produce haploid gametes for reproduction. Which of the following best describes how the diploid number of chromosomes is restored in the offspring of these organisms?

A) DNA replication creates homologous chromosomes
B) independent assortment in meiosis allows random combinations of chromosomes
C) synapsis during prophase of meiosis I creates random combinations of alleles
D) fertilization combines chromosomes from each parent into resulting zygote