Question

what is the best explanation of a placebo? an alternative treatment a sugar pill a group that receives no treatment in an experiment a fake treatment the treatment received by the experimental group in an experiment

Explanation:

A placebo is a substance or treatment with no active therapeutic effect, essentially a fake treatment used in experiments to compare against real treatments. While a sugar - pill can be a type of placebo, the broader concept is a fake treatment. An alternative treatment has active components, a group with no treatment is a control group, and the experimental group receives the real treatment being tested.

Answer:

a fake treatment