Primary master cone of GP point used for obturation of root canals is defined as:: (A) Cone with snug-fit, (B) Cone selected by the master staff, (C) Cone with loose fit, (D) Cone that matches initial instruments
Answer is A. Following the canal preparation, select the master gutta-percha cone whose diameter is same as that of master apical file. 
One should feel the tug back (snug-fit) with master gutta-percha point.