What's the difference between the operational manuals and program delivery instructions (PDIs) that immigration officers use as guidance in applying the Immigration and Refugee Protection Act (IRPA)? Question 9 options: A) Operational manuals are being phased out and gradually replaced with program delivery instructions. Both documents perform similar functions. B) PDIs are electronic, and operational manuals are print. C) Operational manuals are for Immigration, Refugees, and Citizenship Canada (IRCC) and program delivery instructions (PDIs) are for the Canada Border Services Agency (CBSA). D) "Operational manuals" and "program delivery instructions" (PDIs) are two terms for the exact same thing