Which of the Following Correctly Describes the Relationship Between the Volume

Multiple Choice

Which of the following correctly describes the relationship between the volume and temperature of a fixed quantity of an ideal gas at constant pressure?
i.V ∝ T
ii.V ∝ 1/T
iii.V = kT
iv.V = k(1/T)

A) iv only
B) i and ii
C) iii and iv
D) i and iii
E) ii and iv