B. Invoked code could indeed call Custom Tags or UDFs, but these cannot be invoked directly from Flash.
A2:
A and C. ARGUMENTS will contain passed arguments if invoking a CFC; FLASH will contain passed arguments if invoking a .cfm file.
A3:
A and C. CFCs indeed encourage separation of content, and they provide the simplest integration. B is false because CFCs are not automatically faster than .cfm files. D is false, since CFCs have the same access to CFML that straight .cfm files do. E is false, as CFCs and .cfm files are equally portable.
