How do Milankovitch cycles influence ice ages?
A) When the three cycles all coincide to create cold climate conditions, the start or continuation of a glacial period is likely.
B) Just one of the cycles' effects alone is enough to either start or stop an ice age.
C) Milankovitch cycles likely do not affect global climate conditions, but rather have a small effect on local conditions.
D) Ice ages cause Milankovitch cycles, not the other way around.
