Final answer:
Option d, 'Ensure our video goes viral within the first week,' is NOT a SMART objective because it is not measurable or achievable.
Step-by-step explanation:
A SMART objective is a goal that is specific, measurable, achievable, relevant, and time-bound. In this case, option d, 'Ensure our video goes viral within the first week,' is NOT a SMART objective because it is not measurable or achievable. The term 'viral' is vague and does not provide a clear target or metric to aim for. A SMART objective should have a quantifiable metric that can be measured and evaluated.