Let the following circular queue can accommodate maximum six elements with the following data
front $=2$ rear $=4$
queue = $\qquad$ : L, M, N, $\qquad$ ,
What will happen after ADD O operation takes place?
A. front $=2$ rear $=5$ queue $=$ $\qquad$ ; L, M, N, O, $\qquad$
B. front $=3$ rear $=5$ queue $=\mathrm{L}, \mathrm{M}, \mathrm{N}, \mathrm{O}$, $\qquad$
C. front $=3$ rear $=4$ queue $=$ $\qquad$ ; L, M, N, O, $\qquad$
D. front $=2$ rear $=4$ queue $=L, M, N, O$, $\qquad$