A,b,c, or d

Jane has been making coffee all week for her co- workers but accidentally used decaffeinated coffee. Jill has been drinking the coffee and claims to feel the benefit from caffeine. Linda has not been drinking the coffee and doesn't claim to feel the benefit. Marie has been bringing her own regular caffeinated coffee in for herself and says she feels the boost. Who is experiencing the placebo effect in this situation? a.) Linda b.) Marie