Please help me on this I do not know the answer

i think that c)gold was found there

but i am not sure

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.