Simplify the following text for a Grade 13 native English-speaking person.
Original: In Western universities , a Bachelor of Divinity ( BD or BDiv ) is usually an undergraduate academic degree awarded for a course taken in the study of divinity or related disciplines , such as theology or , rarely , religious studies .
Simplified: In Western Christian theology , a Bachelor of Divinity ( BD or BDiv ) is usually an undergraduate academic degree given for courses taken in the study of divinity .