Fresco painting are a mixture of plaster and paint. It has an advantage of never being able to come off however in some cases the color can fade and if one makes a mistake while painting it is not easy to cover up/fix. Also whatever brushes that are used can easily be destroyed after doing a fresco painting
The answer is C as shown on brainly. Theres a question posted on brainly just the exact same as yours. I'd stick with C because the person had given a full explanation to it, I can't copy & paste but I would if I could.