D, how hard the students try on the SAT seems the most reasonable.
Answer:
T1 (includes T1a, T1b, and T1c): Tumor is 2 cm (3/4 of an inch) or less across. T2: Tumor is more than 2 cm but not more than 5 cm (2 inches) across. T3: Tumor is more than 5 cm across. T4 (includes T4a, T4b, T4c, and T4d): Tumor of any size growing into the chest wall or skin.
Explanation:
Since the sympathetic nervous system activates the 'fight or flight' response, I'd say the sympathetic nervous system was damaged by the injury.
Hope this answered your question.
