sketches and paintings are both forms of artwork done by the artist.
they are quite diffrent though sketchs are a rough draft of a peice of work.
paintings are artwork done with paint brushs and diffrent technic's, they could be vividly colorful or black in white its up to the artist.
hope this helps! <3
have a great day :D
Hi Klaffytaffyyt, you're answer to this question would be B. Light values next to dark values. The reason it would be this is because if you notice, There are no Primary colors next to secondary colors. Shapes next to forms? Not exactly, there are other answers that better suit this question. But B tells us that there are light values next to dark values which is true! I can't really make out what the image is, it is too small, but it looks like some sort of bar. There is light shining on the inside which contrasts with the darkness outside.
Hope I was able to help! Goodluck! :)