This is a question about geography. A "strait" (not "straight") is a narrow body of water that acts as a passageway between one larger body and another. In your shoes I would look up "Constantinople location" on the Internet.
Answer: Strait of Bosphorus.
The purpose of affirmative action is to establish fair access to employment opportunities to create a workforce that is an accurate reflection of the demographics of the qualified available workforce in the relevant job market.
The answers A. All Christians were against segregation and discrimination
Answer: They help to clarify what happened in a crime.
Explanation: Witnesses tell the judge and/or jury everything they know about an event. A witness is someone who has <em>relevant information</em> about a crime that had taken place.