Answer:
B). The military's allegiance to the established power is quite strong.
Explanation:
Social revolutions are demonstrated as the unanticipated changes that aim to alter the social structure or character of a society. Some of the primary causes of such occurrences would include the excessive political or economical oppression, lack of fulfillment of people's needs that deprives or rejects them from their rights.
As per the question, social revolutions would occur in all the given cases except for 'The military's allegiance to the established power is quite strong' as the military has no affiliation to the rights or authorities of the masses but rather they are merely concerned about the safety and security of the nation. Thus, it could not lead to the social revolt. Therefore, option B is the correct answer.