Based on Normal Aging,which Person Is Most Likely to Be

Multiple Choice

Based on normal aging,which person is most likely to be in middle adulthood?

A) Jim, who has experienced a slight decrease in lung capacity and eyesight
B) Sarah, who has had a gradual decrease in her height
C) Enzo, who has a 35% reduction in blood flow though the coronary arteries
D) Carmella; her muscle fibers are decreasing in diameter