Answer:
d. Archaea; Bacteria
Explanation:
Although archaea are single celled organisms, molecular evidences shows that eukarya are more closely related to archaea. A study by researchers in Indiana University showed that the arrangement of archaea DNA into clusters were similar to that of the eukarya.
There are at least three evidences that proves archaea are similar to eukarya.
1. Similar varieties of metabolic reactions and energy sources.
2. chromosomal replications at multiple starting points with the use of DNA polymerase, just like in eukarya.
3. Energy generation in the form of ATP through chemiosmosis, just like the process that occurs in eukaryotic cells.
Hence, since evidences shows that eukarya is closely related the archaea, it's safe to say humans are closely related to archaea than bacteria.
