Alternative

Two or more courses-of-action open to choose between, two or more things between which a choice is available,

a situation such that one (or more, but not all) of two or more things – events, objects, beliefs, hypotheses, etc.  – may be chosen, the choice involving the rejection of another (others), able to be used or chosen instead of something else;

also, (one of) those avenues (which are) chosen between.

(see also: decision, judgement, decision-making, argument, attitude, decision analysis, decision-making under uncertainty, counterfactual reasoning, statistical decision-making, Decisions – some questions probing ethical dimensions of)