Given the Regression Model Y = β₀ + β₁x₁

Given the regression model y = β₀ + β₁x₁ + β₂x₂ + β₃x₁² + β₄x₂² + ε, if we wish to test the significance of higher-order terms (x₁² and x₂²) , which test would we use?

A) overall F test
B) Durbin-Watson test
C) partial F test
D) t test
E) Cook's distance measure