Figure 1 -According to Figure 1, What Must Be Done to the to the Volume

Multiple Choice

Figure 1
-According to Figure 1, what must be done to the volume of the gas in order to double its pressure while keeping its temperature constant?

A) The volume should be doubled.
B) The volume should be cut in half.
C) The volume should remain the same.
D) The volume should be tripled.
E) The volume should be cut to one-fourth its original value.