Which of the following was a popular art form during the 15th century?

a.

murals

b.

frescos

c.

sculptures

d.

all of the above

b. frescos

Explanation:

Fresco Painting is a method of painting with water-based pigments on freshly applied plaster, usually on wall surfaces. It is a fairly old technique that began in Greece and Rome. It is very common in churches and historic buildings, inside, on walls or ceilings.

Fresco painting reached its greatest development between the thirteenth and sixteenth centuries, with Italy as its major center.

Among the painters stand out Giotto and Michelangelo.

I believe the answer is d