One problem with many medical trials going unpublished is that this situation could result in

A) false positive results.
B) false negative results.
C) selection bias.
D) the increased use of placebos.

Medical Trials

Research studies performed on volunteers to assess the safety and efficacy of new drugs, devices, or procedures before they are made available to the public.

False Positive

An error in some test results in which a condition or trait is incorrectly indicated as present, leading to potential misinterpretation of the state.