Consider the following statements.
(A) Conduction usually takes place in solids, convection in liquids and gases and no medium is required for radiation.
(B) In conduction and convection, heat is transferred from one place to other by actual motion of heated material.

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.