1. Archaebacteria differ from other bacteria in having a different cell wall structure 2. Methanogens live in marshy areas and halophiles live in hot springs. 3. Methanogens are present in the gut of several ruminant animals

Question

( a ) 1 is correct but 2 and 3 are incorrect
( b ) 1 and 3 are correct but 2 is incorrect
( c ) 2 is correct but 1 and 3 are incorrect
( d ) 1 and 2 are correct but 3 is incorrect