Suppose a Bezier curve P(t) is defined by the following four control points in the xy-plane : P₀ = (-2, 0); P₁ = (-2, 4); P₂ = (2, 4); and P₃ = (2, 0). Then which of the following statements are correct?

A. Bezier curve P(t) has degree 3.

B. P\(\left(\frac 1 2 \right) \) = (0, 3).

C. Bezier curve P(t) may extend outside the convex hull of its control points.

Choose the correct answer from the options given below :