Answer: increases the legitimacy of its desired outcome.(D)
Step-by-step explanation:
Coalition is when two or more people, political parties, and factions, agree to work together in order to achieve a common goal.
An example of a coalition is a trade union which is a form of coalition that was formed to represent the wages, working conditions and benefits of workers.
When coalition is formed, it increases increases the legitimacy of the desired outcome of the coalition. For example, to prevent gun violence and enhance gun control, different groups, and unions, came together and formed the coalition stopping gun violence.