B. chief examiner.
A chief examiner would be someone or something else unrelated entirely. Perhaps a police chief or a medical examiner are the closest to a "chief examiner" anything.
Yes, credit is good for the economy, because it helps it.
No, they shouldn't, because there are certain people to do that for them.
A financial institution is an establishment that conducts financial transactions such as investments, loans and deposits.
Can't answer the last one, sorry! Hope this helps.
If Multiple choice please list choices