Answer
while the earth's orbit is almost circular and little seasonal change arises here from our changing distance from the sun, which of these planets would find its northern hemisphere summer solstice much colder than its southern hemisphere one, due to larger changes in perihelion and aphelion?

a) venus (eccentricity = .007)
b) mars (eccentricity = .093)
c) jupiter (eccentricity = .048)
d) neptune (eccentricity = .010)