Answer: a higher level of antibody
Explanation: whenever any foreign particle enters in the body, the immune system activates. The body responds according to the type of foreign particle. If plasma cell count is higher in lymph then the antibody level also higher. Because plasma cells are responsible for the production of antibodies. Whenever the plasma cell level raises automatically antibody level also raise. For example in the case of multiple myeloma plasma cell level abnormally increases and also antibody level raised to an abnormal level.