Step 1: Clear the roots
Square both sides: \(2+\left(\frac{d^2y}{dx^2}\right)^3=\left(\frac{d^3y}{dx^3}\right)^5\).
Step 2: Order
The highest derivative is \(\frac{d^3y}{dx^3}\), so the order is \(3\).
Step 3: Degree
Its power is \(5\) and the equation is polynomial in derivatives, so the degree is \(5\). Option (B).
Final Answer:
Order \(3\), degree \(5\), option (B).
\[ \boxed{\text{(B) }3,5} \]