Assertion: `SO_(2)` gas is easily liquefied while `H_(2)` is not.
Reason: `SO_(2)` has low critical temperature while`H_(2)` has high critical temperature.
A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true but R is false
D. If both A and R are false
