The circle in the figure above is inscribed in a square.

Which of the following statements individually provide(s) sufficient information to determine the area of the square?

Indicate all such statements.

(A) The circumference of the circle $\(=4 \pi\)$.

(B) The ratio of the area of the square to the area of the circle $\(=\frac{4}{\pi}\)$.

(C) The area of the shaded section in the lower left, inside the square but outside the circle, is $\(4-\pi\)$.