Which modern artist frequently used impossible figures as the basis of his work

A)  Pablo Picasso
B)  René Magritte 
C)  Salvador Dali
D)  M. C. Escher

Impossible Figures

Optical illusions or drawings that create a perceptual paradox, appearing feasible at first glance but are impossible to exist in three-dimensional space.

Modern Artist

An artist belonging to the period from the late 19th century through the mid-20th century characterized by a departure from traditional styles and the exploration of new forms of expression.

Pablo Picasso

A Spanish painter, sculptor, printmaker, and ceramicist, one of the most influential artists of the 20th century.