`Which of the Following Is the Quantifier-Negation Rule?
A) $(x)(\ldots x \ldots)$

`Which of the following is the quantifier-negation rule?

A) $(x) (\ldots x \ldots)$ . Therefore, $(\ldots$ a ... $)$
B) $\sim(x) (\ldots x \ldots)$ . Therefore, $(\exists x) \sim(\ldots x \ldots)$
C) $(\ldots$ a .... $)$ . Therefore, $(\exists x) (\ldots x \ldots)$
D) $(\exists x) (\ldots x \ldots)$ Therefore, $(\ldots \mathrm{a} \ldots)$
E) $(\ldots$ a ... ) Therefore, $(x) (\ldots x \ldots)$