5. An ideal gas in a closed container initially has volume V, pressure P. and Kelvin temperature T. If the temperature is changed to 3T, which of the following pairs of pressure and volume values is possible?
(A) 3P and V
(B) 3 P and 3 V
(C) P and `V/3`
(D) P/3 and V
(A) 3P and V
(B) 3 P and 3 V
(C) P and `V/3`
(D) P/3 and V