Kaya had an organ transplant. she went to the doctor a week later, and the doctor did a blood test. her lymphocyte count had increased. she went to the doctor a month later for the same test, and her lymphocyte count was higher. what is the best explanation as to why her lymphocyte levels were increasing?

a. kaya was given antibiotics to prevent infections.
b. kaya’s antigens were attacking the tissue.
c. kaya was not tissue typed prior to her surgery, and her body is mounting an immune response.
d. kaya took her immunosuppressant drugs weekly, which increased her lymphocyte count.