What is the reason for the reactivity of the Grignard reagent?

Explanation

Option A is incorrect because only the presence of the Mg atom doesn't make Grignard reagent reactive. Option B is wrong because the polarity of the C-H bond doesn't make Grignard reagent reactive. Option: C Grignard reagents are much more reactive than most of the organic compounds. The reactivity is due to the nature of the C-Mg bond which is highly polar. Magnesium is more electropositive than carbon and the C-Mg bond through covalent is highly polar, giving alkyl carbon a partial negative charge. The negative charge is of unusual character which makes the alkyl groups highly reactive towards the electrophile centre. Most reactions shown by Grignard reagents are exothermic. Option D : The presence of electrophilic carbon does not make a Grignard reagent reactive because Grignard reagents are themselves nucleophiles, and they prefer to attack electrophilic species rather than being attacked by them.