You could say " My friend is really good at volleyball. " Hope this helps!!!! :) Have a good day!
The answer I believe would be c
Icon, Index, and Symbol — Three Categories of Signs
Answer:
The answer is 'it provides only a placebo effect,' In the passage, it not only specifically says this but it also states 'it only works because people want it to' which is what a placebo effect is(when you think about it so much that is becomes real)
Explanation: