According to Cohen $(2013),$ Drucker insisted all of the following were necessary for good objectives except:

$(3$ Points$)$

$($d$)$ having an internal view to the organization.

$($c$)$ having a quantified standard of performance.

$($b$)$ relating to a single topic.

$($a$)$ relating to result, not an activity.

$($e$)$ specifying a time frame to achieve objectives.