If a skill is not required by the situation and not observed, the score should be marked as: a. Effective b. Deficient c. Questionable D d. Not Assessed

The correct answer is b. Deficient.When evaluating a skill or competency, it is important to consider whether the situation required the skill and whether it was observed or demonstrated. If a skill is not required by the situation and not observed, it would be considered deficient, as it was not necessary or demonstrated in the given context.