Which act marked a change in immigration policy in response to security concerns?

• A. Citizenship Act 1982
• B. Immigration Act 1976
• C. Safe Third Country Agreement 2004
• D. Refugee Protection Act 1989

Answer: (B)

The main idea here is how immigration policy can be tightened when security concerns rise, giving the government broader power to control who can enter and stay. The Immigration Act of 1976 is the best answer because it formalized stronger entry controls and expanded the authorities of officials to screen, refuse admission, and remove people on security grounds. This shift shows a move toward prioritizing national security in immigration decisions, setting a framework that allowed for more careful evaluation of applicants and quicker action when risks were identified.

The other acts focus more on citizenship rules, refugee procedures, or a bilateral agreement about where asylum claims can be made, rather than signaling a broad policy change centered on security-driven control of immigration.