Note the Following Six Properties: Which Four of the Listed

Note the following six properties: Which four of the listed properties are needed to describe an ideal gas?

A) 1, 2, 4, 6
B) 1, 3, 5, 6
C) 1, 3, 4, 6
D) 1, 4, 5, 6
E) 2, 4, 5, 6