What is the nature of the dissídios coletivos de greve and what is the role of the Ministério Público do Trabalho in these cases? a) The dissídios ...

What is the nature of the dissídios coletivos de greve and what is the role of the Ministério Público do Trabalho in these cases?
a) The dissídios coletivos de greve are of a mixed nature, and the Ministério Público do Trabalho has the legitimacy to file a collective dispute when it comes to a strike in an essential activity, with the possibility of injury to the public interest.
b) The dissídios coletivos de greve are of an economic nature, and the Ministério Público do Trabalho has the legitimacy to file a collective dispute when it comes to a strike in any activity.
c) The dissídios coletivos de greve are of a legal nature, and the Ministério Público do Trabalho has the legitimacy to file a collective dispute when it comes to a strike in an essential activity, with the possibility of injury to the public interest.
I - The strike is a type of labor self-defense of workers to press the employer to accept the demands made or to demand compliance with obligations already assumed by the employer.
II - If the strike is abusive, the employer has the right to dismiss the striker for just cause.
III - The employer's and employees' unions must be legitimate parties for its establishment.
IV - Due to the collective social interest, legitimacy was also attributed to the Ministério Público do Trabalho in cases of strikes in essential activities.
a) I, II, III, and IV are correct.
b) Only I, II, and III are correct.
c) Only II, III, and IV are correct.
d) Only I, II, and IV are correct.