Problem 4. (20 points) For each part, indicate under which of the seven critical components the indicated information should be classified. (a) The fact that a survey concerning the cost of college education was conducted immediately following a tuition increase at the local state university. OA. Component 6: Extraneous differences. B. Component 1: Source. C. Component 2: Researchers. OD. Component 4: Measurements. E. Component 5: Setting. (b) The fact that a study was paid for by a grant from a large oil company. OA. Component 2: Researchers. B. Component 4: Measurements. OC. Component 1: Source. D. Component 6: Extraneous differences. OE. Component 5: Setting.