Answer:
1. economics a. restricted to examining material goods
2. philosophy e. development and culture of man
3. political science f. principles of government
4. psychology d. studies individuals
5. history b. recording major events of the past
6. anthropology c. studies truth and knowledge
D. Neither he nor his friends studies every day of the week
The answer is 4) You
Indirect object pronouns are noun phrases referring to someone or something that is affected by the action.