Which of the following best describes the situation after Line $3$ has been exect

$pC$ does not have a target, and $pC$ does not have a known value.

${?}^2.pC$ does not have a target, but $pC$ does have a known value.

$pC$ has a target, but its target does not have a known value.

${?}^4.pC$ has a target, and its target does have a known value.

None of these