Which of the following statement is /are correct ?
An activating group is an electron releasing group
2. An activating group activate all position of benzene ring
3. The effect of any group whether activating or decativating is the strongest at ortho and para position in the benzene ring
4. An activating group activate only the ortho and para position in benzing ring
A. 2,3
B. 1,3,4
C. 1,2,3
D. 1,2,3,4