The Aptly Named Dead Horse Arum Has a Heat-Producing Flower

The aptly named dead horse arum has a heat-producing flower. What advantage does this heat provide?

A) It enables blooms to emerge through snow.
B) It warms the pollinators, which are usually bats.
C) It creates a barrier to invasive plant species.
D) It increases the evaporation of the scent, attracting pollinators from greater distances.
E) It prevents inefficient pollinators from collecting pollen.