The correct answer answer is A. An impulse-control disorder.
Impulsive-control disorder is a good example of addiction to gambling.
Impulse control disorder is termed as psychiatric disorder class which is characterized by being impulsivity. For example, being able not to resist temptation, an urge or an impulse.
Examples of impulsivity disorder include mood disorder, conduct disorder, behavioral addictions and substance-related disorders.
There are some stages which characterizes impulsivity, for example, pleasure on acting, growing tension, relief from urge and an impulse.