In primary tuberculosis, all of the following may be seen except -: (A) Cavitation, (B) Caseation, (C) Calcification, (D) Giant cell
Answer is A. Tuberculosis 

Depending on the time of infection and the type of response pulmonary tuberculosis may be classified as primary and post-primary.
Primary tuberculosis is the initial infection by tubercle bacilli in a host.
Post-primary (secondary or adult) type of tuberculosis is due to reactivation of latent infection or exogenous reinfection.