The eyeball consists of a round tough white skin called

The eyeball is a complex structure that allows us to see. It is made up of several parts, including the cornea, iris, pupil, lens, retina, and optic nerve. The outermost layer of the eyeball is a tough, white, fibrous layer called the sclera, which is also known as the "white of the eye". Option A, which states "Sclerotic", is the correct answer. The sclera is a protective outer layer of the eyeball that provides support and helps maintain the shape of the eye. It is made up of dense connective tissue and is continuous with the clear cornea at the front of the eye. The sclera is important for maintaining the structural integrity of the eye and protecting the delicate inner parts from injury. Option B, Choroid coal, and Option C, Optical fiber, are incorrect answers as they do not correctly identify the outermost layer of the eyeball. Option D, Accommodation, refers to the ability of the lens of the eye to change shape to focus on objects at different distances and is not related to the outer layer of the eyeball.