Answer:
a. Mary shows physicality
Explanation:
The innovative work done by Giotto is the presence of human figure and its relationship with the outer world .
The options b , c , d shows the traditional methods of painting like background is golden and there is no symmetry because Mary and child is larger in shape with respect to the angels .
Faces shown can be generic or it might not be .
Hence , the most appropriate answer is ( a ) .
