Correct Answer: Green

Solution : The correct option is Green.

Colour blindness, also known as colour vision deficiency, is a condition in which a person has trouble identifying or properly detecting specific colours. Red-green colour blindness is the most frequent type of colour blindness, and it may present itself in two ways: Protanopia is a condition in which people have trouble seeing red light effectively. They may see red to be a shade of green or brown. They are less sensitive to long-wavelength light, which includes the red end of the spectrum. Individuals with deuteranopia have difficulty distinguishing between green and red light. They may also interpret red as a green or brown colour. Deuteranopia is caused by a deficiency in the eyes' medium-wavelength cones (green cones).