No zones are: a. areas of the road drivers must avoid when a truck is turning b. areas of the road where large trucks can't drive c. ramps to trucks slow down when their brakes fail d. the blind spots around a large truck

The belmont principle of beneficence requires that: a. subjects derive individual benefit from study participation.b. potential benefits justify the risks of harm.c. the study makes a significant contribution to generalizable knowledge.d. risks are managed so that they are no > minimal.