The correct answer is A. Celtic culture
Explanation:
The book of Kells was created in the 9th century by monks in Ireland, which were part of the Celtic culture and the Celtic nations. The purpose of this book was to create an illustrated version of the New statement by including elements such as tables, scenes, drawings, among others. Additionally, the book was a mixture between Christian religion and the local Celtic culture, this was mainly included through artistic elements. For example, the Celtic knots, which are part of the Celtic culture were used to decorate multiple elements in the book.