Answer:
Contrast, is the right answer.
Explanation:
The difference in color or luminance that makes an object separable is known as Contrast. In the context of the real-world visual perception, it is defined by the variance in the color and shine of the object and other articles within the corresponding area of view. Contrast sensitivity is one of the most significant measures of visual function, particularly in the situation of fog, glare or low light.
B or c because it has to do with the problem of South Asia as a whole I hope that makes since
