Final answer:
Subjective and Intersubjective are observer dependent, while Objective is not.
Step-by-step explanation:
The term 'observer dependent' refers to something that relies on the perspective or interpretation of the observer. Option a) Subjective and option b) Intersubjective are both observer dependent because they are based on individual opinions and interpretations. Option c) Objective is not observer dependent because it is based on facts and evidence that can be independently verified. Therefore, the correct answer is d) None of the above.