If the air temperature rises above body temperature, which of the following control mechanisms can help keep body temperature constant?
- Aconstriction of blood vessels in skin ✓; shivering ✓; sweating ✓
- Bconstriction of blood vessels in skin ✓; shivering ✗; sweating ✗
- Cconstriction of blood vessels in skin ✗; shivering ✓; sweating ✗
- Dconstriction of blood vessels in skin ✗; shivering ✗; sweating ✓