Which of the Following Is True of the Thermal Equator

Which of the following is true of the thermal equator during the month of July?

A) it trends equatorward over continents and poleward over the oceans.
B) it trends poleward over continents and equatorward over the oceans.
C) it assumes an orientation that closely parallels that of the equator.
D) its orientation is apparently random and has yet to be adequately explained.
E) it parallels the equator in the western hemisphere.