Which of the following is true?

a. peptidoglycan is the main component of Archaeal cell walls

b. Archaea contain membrane bound organelles

c. Archaea Ribosomal RNA sequences are more similar to Eukaryotes than Bacteria

d. All of the above

Option (c).

Explanation:

Three domains of life are eukarya, archaea and eubacteria. The archae bacteria shows more closely associated relation with eukarya rather than eubacteria.

The archae ribosome has similar RNA sequences with eukaryotes rather than the bacteria. The similar structural features known as bills and lobes occurs in both the small subunit of the archae and eukaryotes. The large subunit of the ribosome also show some similar features.

Thus, the correct answer is option (c).