The Earth Is Actually Farther from the Sun During the Period

The Earth is actually farther from the sun during the period when the Northern Hemisphere is having summer.What is the explanation?

A) The sun grows more powerful on a half-year cycle
B) The tilt of the Earth causes warm air from the equator to move north
C) The Northern Hemisphere is warmed by sunlight reflected off the moon
D) The tilt of the Earth presents the Northern Hemisphere toward the sun
E) There is a six-month lag phase between sunlight being absorbed and lost