Keith Goes into His Doctor for a Blood Test

Keith goes into his doctor for a blood test.Two weeks later, he returns for a follow-up blood test, and the doctor notes that Keith's lymphocyte count has increased since his earlier visit.Based on the research into the physical responses to stress, you might conclude that:

A) Keith is experiencing more stress at the time of the second blood test
B) Keith is experiencing less stress at the time of the second blood test
C) Keith is more likely to develop a physical illness within the next 2 weeks
D) Keith has a phobic reaction to medical testing that causes him to experience severe stress