Agree, I also picked C.

We are led to assume this answer choice. If the double blind won't work because only the patients taking the drug will have side effects, Engle or any other person that reads McKinley has to presume that the placebo won't have an effect.

Thanks for the clarification.

Is it against 7sage rules for someone to sell me pdf/hard copies of a PT?

If not, does anyone want to sell me used or unused PT 39-44?

I did not find these for sale on Amazon cheaper than $10 a test.