Hummingbirds Are Small Birds That Require Constant Food Supply

Multiple Choice

Hummingbirds are small birds that require constant food supply.When hummingbirds are faced with a situation that decreases their food supply,such as a storm,which of the following adaptations would be most useful for the bird to survive an unpredictable and shorter term absence of food resources?

A) shivering
B) torpor
C) hibernation
D) basking