An investigator has received irb approval for a clinical trial. during the course of the study, the investigator decides to make some changes to the study procedures to make management of the study easier for him and his study team. the investigator must do the following:

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

answer; ///he could not explain why the continents drifted;

answer; membership group;

answer(emotion);