For a certain oxidation$-$reduction reaction, $E$ is positive. This means that

$\frac{?}{{?}_{\frac{?}{?}}O}$ is negative and $K$ is less than $1.$

$\frac{?}{{?}_{\frac{?}{?}}O}$ is negative and $K$ is greater than $1.$

$6$ is zero and K is greater than $1.$

$6$ is positive and K is greater than $1.$

$C$ is positive and $K$ is less than $1.$