Answer:
C. be found in extreme environments like hot springs, deep oceans and swamps.
Step-by-step explanation:
Archaea are different from protista because they are found in extreme environments like hot springs, deep oceans and swamps.
Archaea represent a group of single celled organisms similar to the bacteria while protists represent a group of animal-like unicellular organisms.
Archaea are prokaryotic in that their cells lack nucleus and membrane bound organelles unlike protists which are eukaryotic with distinct nucleaus and membrane-bound organelles like mitochondrion.
Hence, options A, B and D are not true for archaea.
The correct option is C.