Consider the following statements.
(A) Coolant coils are fitted at the top of a refrigerator, for formation of convection current.
(B) Air becomes denser on cooling.

Select the correct option.
(a) (A) is false but (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true but (B) is false.
(d) Both (A) and (B) are false.
 

• A

  Both (A) and (B) are true.

• B

  (A) is true but (B) is false.

• C

  (A) is false but (B) is true.

• D

  Both (A) and (B) are false.