オプション

おぷしょん
noun
option, optional extra
1. option, optional feature, add-on
An additional item, service, or feature that can be chosen beyond the standard offering. Often used for optional extras when purchasing products or services.
オプション追加(ついか)する
To add an option.
Navigation can be added as an option.
The hotel breakfast is optional, so there is an extra charge.

From English "option." In Japanese, オプション specifically emphasizes the idea of an optional add-on or upgrade, rather than the broader English meaning of "choice."

Common patterns

Usage

When talking about choices in general, the Japanese word 選択肢(せんたくし) is more appropriate than オプション. オプション specifically implies an optional extra on top of a base product or service.