According to the endosymbiosis hypothesis (also referred to as the endosymbiosis theory), how did mitochondria originate?
a. they were direct results of genetic mutations in eukaryotic cells that allowed for oxygen-using metabolism.
b. they were eukaryotes that became engulfed by a progenote.
c. they were prokaryotes that became engulfed by urkaryotes.
d. they resulted from infoldings of the plasma membrane.

The correct answer will be option- C.

Explanation:

The endo-symbiotic theory was given by Lynn Margilus in 1967 which explained the origin of complex eukaryote from simple prokaryotes.

The endosymbiotic theory stated that a eukaryote became complex after the ingestion of prokaryotic cells which became permanent which proved useful to each other. The presence of mitochondria is evidence supporting the endosymbiosis which is thought to have evolved from a prokaryotic chemosynthetic bacteria in past.

Thus, option- C is the correct answer.

answer is a

explanation: