Answer:
(Order from top to bottom)
Shade,
Hue,
Tone,
Tint
Step-by-step explanation:
Let's just solve hue first..
Logically, we can cancel out 2 of the definitions because they use the word "hue" in them, and you can't use the word in the definition of the word. And something that "contains equal amounts of white and black" does not sound like hue. Therefore, hue is "a pure color."
Tint is created when you add white to a hue. I know this because I am into photoshop. And white is a lighter color, therefore making tint "hue lightened by adding white"
It may get confusing to tell the difference between shade and tone. But just look at it this way. Is tone really just a darker version of hue, or is it equal percentage of two colors? In photography, tone is more than just a darker hue, therefore making, "result of using 50 percent grey, which contains equal amounts of white and black," the answer for tone. Therefore, tone is the third option. And shade is the first.
If I am wrong then feel free to report this question, photography is not one of my expertises. (This question was edited because I was wrong; the correct answer is now viewable on my question and the question above)