(06.02 MC)
The orbital radii of four planets in our solar system are shown in the following table.

Orbital Radii
Planet Orbital Radii (AU)
W 5.2
X 0.72
Y 0.37
Z 19.1
Which planets are likely to be gas giants? (5 points)

Select one:
a. W and X
b. X and Y
c. Y and Z
d. W and Z