Final answer:
The learning objective that focuses on the highest level of Bloom's original taxonomy is for students to assess the effectiveness of an essay.
Step-by-step explanation:
The learning objective that focuses on the highest level of Bloom's original taxonomy is:
B. Students will be able to assess the effectiveness of an essay.
Assessing the effectiveness of an essay requires critical thinking skills and the ability to analyze the quality and impact of the writing. This objective goes beyond simply identifying or distinguishing between certain elements, and instead requires students to make judgments and evaluations based on their analysis.