Consider three-dimensional Euler equations. What will you do to get the value of \((\frac{\partial^2 ρ}{\partial t^2})_{i,j}^t\)?

• A. Differentiate \(\rho_{i,j}^t\) with respect to time twice
• B. Differentiate the continuity equation with respect to time
• C. Differentiate the value of \((\frac{\partial \rho}{\partial t})_{i,j}^t\) with respect to time
• D. Differentiate the value of \(\rho_{i,j}^t\) with respect to time twice