In a certain laboratory, new base units are chosen as follows: 1 mass unit = 3 kg, 1 length unit = 2 m, 1 time unit = 0.5 s. By what factor will the numerical value of pressure change when it is expressed in these new units instead of SI units?
a) It becomes 3 times smaller.
b) It becomes 0.25 times its SI value.
c) It becomes 6 times smaller.
d) It becomes 6 times larger.