Which explains how the great lakes cause excess snow on the eastern edges during the winters?

a.
as the winds blow west over the lakes, they warm, thereby leaving the cooler air mass to drop snow on the eastern shores.

b.
as the winds blow west over the lakes, they release heat and moisture from the lakes, thereby cooling and dropping snow on the eastern shores.

c.
as the winds blow east over the lakes, they pick up heat and moisture from the lakes. when they reach land, they cool and drop snow on the eastern shores.

d.
as the winds blow east over the lakes, they cool and drop snow on the eastern shores.