The work of which early renaissance master best exemplifies solid volumes resting firmly on flat and horizontal surfaces?

Giotto's abbreviation is Giotto di Bondone was born 1266–67/1276 in a city named Vespignano, near Florence Italy. He died on 8th January 1337, in Florence. One of the most famous Italian artist of the 1400s. Whose images tend to unique discoveries of the Renaissance technique that occurred an age after. During nearly seven eras Giotto has been honored as the creator of European art and the first of the famous Italian artists.

i believe the answer is: a.  abstract forms were often used to represent human figures.

representing human figures in abstract forms is often used in the geometric period, not hellenistic  period.   during the hellenistic  period,   aesthetic value derived from creating arts which mimic the actual shape of a certain object or individuals.

hope this ! < 3