Projective techniques are most useful when $\_\_\_\_\_\_\_\_.$

$($I$)$ are reluctant to reveal their feelings, beliefs, and motivations

$($II$)$ are unable to reveal their feelings, beliefs, and motivations

$($III$)$ the information cannot be obtained in a focus group

Both $($I$)$ and $($II$)$ are correct.

$($I$),($II$),$ and $($III$)$ are correct.