Answer:
V1/T1 = V2/T2
Step-by-step explanation:
The Combined gas law for two states, 1 and 2, is given by:
P1V1/T1 = P2V2/T2
where P, V, and T are Pressure, Volume, and Temperature (always in degrees Kelvin).
If pressure is constant, the P1 and P2 cancel out:
V1/T1 = V2/T2
I can't tell from the formatting of the answers if A is this relationship. Please compare.