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 $\infty$ T
(ii) V $\infty$ 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