A researcher is studying women recently admitted to a state prison. All potential subjects must have children under the age of five. Research subjects will be given a basket of toys to use at their children's first visit that the children can then take home. In assessing this proposal, the IRB needs to determine that the toys are:

A. Educational.
B. Not an excessive incentive.
C. Of high quality.
D. Age appropriate.

B) Not an excessive incentive.

Explanation:

According to the question,IRB(Institutional Review Board) should guide and monitor research by determining that toys are not excessive incentive as research subjects can lie or don't inform researcher about not meeting eligibility criteria so that they can be a part of research.

Other options are incorrect because educational aspect, high quality aspect and age consideration are not the aspects for toys that is required to be explained. Thus, the correct option is option(B).  

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