during the golden age, al - khwarizmi was known for inventing\ncalligraphy.\nalgebra.\nmosaics.\narabesques.

Answer

Brief Explanations:

Al - Khwarizmi is widely regarded as the "father of algebra". His work laid the foundation for the field of algebra. Calligraphy is the art of beautiful writing, mosaics are artworks made of small pieces, and arabesques are decorative patterns, none of which are his inventions.

Answer:

B. algebra