noun
Refers to the legal, formal, or personal right to make a choice among alternatives. Often used in contexts like contracts, policies, or personal decisions.
この契約では、利用者に選択権がある。
Under this contract, the user has the right to choose.
どの大学
Which university to attend is ultimately the person's own choice.
決定権 is the 'right to decide' or 'final say', often implying authority to make a binding decision, whereas 選択権 focuses on the freedom to select from options.
Compound of 選択 (せんたく, 'choice') and 権 (けん, 'right, authority'). The word is a straightforward Sino-Japanese formation.