Answer:
I would say, depth of field- but you didn't show the image so I'm kinda guessing.
Explanation:
Complementary colours are colours that are combined to make a grayscale off colours
A complementary pair is when you combine colours that are opposite of each other like red and green, or yellow and purple etc.
When you put two of these colours together they cancel each other out which leads to that grayscale of colours like grey or even brown
Answer:
When it comes to depression I really recommend a therapist or counseling because it depends what category or like level of depression you are in to really determine how to cope with it
But avoiding isolation could be good to try to have someone to support you
Do things to keep you distracted and motivated
(depends on age and your access to things but going out could help ofc always be safe because of the pandemic)
exercising or meditating are also other things and joirnaling also helps some people but it really depends how you are and the type of depression you are in
I do recommend talking to a therapist
The answer C Different Trains