Consider the following proposition:

not$(pvv(q^{{?}^{?}}$notr$)).$

Which propositions below are equivalent to the above proposition? Select all that apply.

A$.$ notpvvnot$(q^{{?}^{?}}$notr$)$

B$.$ notpvv$(not{q}^{{?}^{?}}r)$

C$.not{p}^{{?}^{?}}(not{q}^{{?}^{?}}r)$

D$.$ notpvv$(notqvvr)$

E$.not{p}^{{?}^{?}}$not$(q^{{?}^{?}}$notr$)$

F$.not{p}^{{?}^{?}}(notqvvr)$