In which of the following differential equations is the degree equal to its order?

Options

A. `X^3(frac{dy}{dx})- frac{d^3y}{dx^3}=0`
B. `(frac{d^3y}{dx^3})^3+ sin (frac{dy}{dx})=0`
C. `X^2(frac{dy}{dx})^4 + sin y - (frac{d^2y}{dx^2})^2=0`
D. `(frac{dy}{dx})^3 + X (frac{d^2y}{dx^2})-y^3(frac{d^3y}{dx^3})+y=0`