Which of the following is the most correct electron displacement for a nucleophilic reaction to take place?




As we learnt in
Nucleophile -
Those e- rich chemical species having capacity to attack e-deficient portion of substrate.
- wherein
Nucleophile must have complete octet and atleast one lone pair

Stable due to +I effect of -CH3 group.
Option 1)

Incorrect
Option 2)

Correct
Option 3)

Incorrect
Option 4)

Incorrect