The word Abandon means to give up completely (a practice or a course of action) or to leave a place, thing, or person, usually forever. It implies desertion or relinquishment. Therefore, the most fitting synonym among the options is Forsake (option B).
When you abandon something, you leave it behind or cease to support it. For example, a ship might be โabandonedโ by its crew, or someone might โabandonโ a bad habit. โForsakeโ carries a similar strong connotation of leaving someone or something, especially a duty, a cause, or a person, often in a way that implies betrayal or neglect. Option A, โSupport,โ is an antonym, meaning to uphold or assist. Option C, โProtect,โ means to keep safe from harm, which is the opposite of abandoning. Option D, โCollect,โ means to gather, which is unrelated. Understanding โabandonโ and โforsakeโ helps to describe acts of giving up, desertion, or ceasing involvement, often with significant consequences.