Personally as an artist, I would advise you to shade light to dark it's hard to explain since I cannot physically show you but i attached a drawing of mine if it gives you an idea :-)
The correct answer is A. Guests help themselves from a buffet table. This is however a changed version of the original French service which changed over the years. All of the food is presented at the same time and the people choose whatever they wish to eat.
Claude Monet is very famous for his series of paintings where he would draw the same subject over and over again but in different lighting so they would all be slightly unique (Ex. His Lily Pads) His brushstrokes are very visible in his paintings and that’s what makes them so interesting. While they do focus on actual subjects, they are more blurred renditions and thus are not hyper realistic. Therefore your answer would be “some show objects at different times of the day or during different seasons.”