Keen Mind

Keen Mind
Feat
Prerequisite: Level 4; Ability INT 13+

You gain the following benefits.
Lore Knowledge.
Choose one of the following skills: Arcana, History, Investigation, Nature, or Religion. If you lack proficiency in the chosen skill, you gain proficiency in it, and if you already have proficiency in it, you gain Expertise in it.
Quick Study.
You can take the Study action as a Bonus Action.

Source: Player's Handbook (2024) (XPHB), page 205