Devise a mechanism for the protonation of the Lewis base below. Draw curved arrows to show electron reorganization for the mechanism step below. Make the ends of your arrows specify the origin and destination of reorganizing electrons.

If you could please provide summary of a simplistic explanation that would be extremely helpful. Thank you,

By eliminating the other incorrect answers, the best answer is (b) chemical reactions involve bonding and nuclear reactions involve releasing particles. Chemical reactions are mainly concerned with bonding between chemicals (though sometimes electrons are released but another atom/ion will absorb it), unlike nuclear reactions which always involves releasing subatomic particles.