Aclose friend has joined a clinical trial. when you ask her about the types of treatment she might be given, she tells you that neither she nor the doctor running the trial will know until the process has been completed. what type of trial has she joined?

The answer is "randomized".

Randomized clinical trial refers to a study in which the members are partitioned by chance into discrete gatherings that think about various medicines or different interventions. Utilizing opportunity to separate individuals into bunches implies that the gatherings will be comparative and that the impacts of the medicines they get can be looked at all the more reasonably. At the season of the trial, it isn't known which treatment is ideal.  

answer; ///i believe the best answer is (d) replace negative self talk with positive self-talk;

b. condominum i think