Rheumatoid arthritis is caused when ...
(i) Lymphocytes become more active
(ii) Body attacks self cells
(iii) More antibodies are produced in the body
(iv) The ability to differentiate pathogens or foreign molecules from self -cells is lost
Choose the correct answer from the options given below
A. i and ii
B. iii and iv
C. i and iii
D. ii and iv
