Lake-Effect Snows Are Best Developed Around the Great Lakes During

Multiple Choice

Lake-effect snows are best developed around the Great Lakes during

A) early spring when moist,tropical air moves over the frozen lakes.
B) late fall and early winter when cold,dry polar air moves over the relatively warm water.
C) late fall and early winter when moist,polar air sweeps in from the east.
D) middle winter when the unseasonably warm air mass moves over the cold water.