Musculoskeletal System. When the body is stressed, muscles tense up. Muscle tension is almost a reflex reaction to stress — the body's way of guarding against injury and pain. With sudden onset stress, the muscles tense up all at once, and then release their tension when the stress passes.
lethal dosage of chocolate for a human being is about 22lb (or 40 bars of Dairy Milk).
If Jane gets bitten by a mosquito, the role the mosquito played in the chain of transmission is vector transmitting.
Must be C as the others just don’t sound right