The main reason why rice cooks faster in a pressure cooker than in cooking pot is that
-
A.
less heat escapes from the cooker -
B.
the vapour pressure in the cooker is constant -
C.
the rice is not affected by the draught over the cooker -
D.
the vapour pressure in the cooker decreases -
E.
the boiling point of water in the cooker is raised.