Cause it does not have but it is another word for because
The two Donatello's characteristic formal contributions are encountered in the work for Baptistery of Siena. He demonstated it through organizing the relief by a rigorous application of the rules of perspective. Even though it was created at a shallow deptht, this technique makes each figure of a scene emerge clearly and very logically. This technique is determined as a flattened relief.
A because most people would know the artist who made it if they have seen it because people give credit and people don’t really look extremely concentrated when there looking at it, it’s whether they like it or if they don’t like it they can also say b that’s also a good answer but a is for me