Answer:
B
Explanation:
On the pictures in the attachment, we can see how it looks when we mix the two colors on the right.
We can see that by mixing two colors in option B the square is almost the same as the color on the left. The tones are a good proportion of green and icy-blue tone, and that is how we get the left tone of the ashy turquoise.
Although it might look like a good option, option A is too bright and too blue to be the match. Both colors that are mixed are too bright, and the blue is the dominant tone,
Option C is ashier blue but still too blue to be the same.
The D option is way too dark, as the second color is very dark green.
