The symbol of Matthew from the Book of Durrow shows frontal head, profile feet, and a cloak and frame that resemble contemporaneous cloisonné metalwork. Which of the following statements explains this work?
a. wedding the abstraction of Late Roman adornment and Early Christian pictorial imagery
b. wedding the abstraction of Early Medieval adornment and Early Christian pictorial imagery
c. wedding the abstraction of Early Christian adornment and Late Roman pictorial imagery
d. wedding the abstraction of Byzantine adornment and Early Christian pictorial imagery