The symbol means percent and the abbreviation means Vital Capacity.
1.B. Enzyme,2.A. Epiglottis,3.D. Stomach,4.D. Nephrons,5.B. Filtering the blood to remove wastes,6.A. Amino Acids,7.<span>A. Protein</span>
I think I would recommend not letting him play. Possibly call 911, or bring him to a hospital.
