Final answer:
Body cells of multicellular eukaryotes like humans are diploid and contain homologous chromosomes, which are matched pairs of chromosomes with identical gene locations inherited from each parent.
Step-by-step explanation:
Most body (nonreproductive) cells of humans and other multicellular eukaryotes have two sets of each chromosome. Such cells are diploid and the matching pair of chromosomes are called homologous chromosomes. The correct answer to this question is: 1) diploid; homologous chromosomes.
Diploid organisms have two homologous sets of chromosomes in their somatic cells, one inherited from each parent. Each somatic cell typically contains 46 chromosomes in humans, arranged in 23 pairs. These homologous chromosomes consist of the same genes in identical locations but have potentially different alleles since one set originates from the mother and the other from the father.