It should be side chain, by looking at a diagram online, idk if im right, but it looks logical.
B because that's how i relief stress
Heat stroke is the most serious heat-related illness. It occurs when the body becomes unable to control its temperature: the body's temperature rises rapidly, the sweating mechanism fails, and the body is unable to cool down. Body temperature may rise to 106°F or higher within 10 to 15 minutes.
Minimal cervical i hope this helps