Directing nature of substituted aromatic compound is decided by stability of `sigma`-complex or areniumion. If `sigma`-complex is stabilised at O-and P-position by attacks of electrophile then the group is O-and P-directing, but if `sigma`-complex si stabilisd at m-position the group will be meta directing on the basis of above explanation. find out correct answers of following questions.
Q. Which of the followin is -O- and p-directing
A.
B.
C.
D.