Who is disqualified from obtaining a firearms license in Massachusetts?

In Massachusetts, all of the choices listed would disqualify someone from obtaining a firearms license. While it may seem like only certain individuals, such as convicted felons or those with restraining orders, would be disqualified, it is important to note that anyone under the influence of drugs or alcohol is also prohibited from obtaining a firearms license. This is because being under the influence can impair judgement and increase the risk of irresponsible or dangerous use of firearms. Therefore, D is the best answer as it encompasses all of the disqualifying factors for obtaining a firearms license in Massachusetts.