Refer to the Following Formula: (∃X)[(Ax • ∼Bx) • ∼(Cx $\lor$

Multiple Choice

refer to the following formula: (∃x) [(Ax • ∼Bx) • ∼(Cx $\lor$ Dx) ]
-Which of the following variables in the formula are free?

A) The x that follows the A.
B) The x that follows the B.
C) The x that follows the C.
D) All of the above.
E) None of the above.