I believe the answer is: double blind procedures
double blind procedures refers to a form of study in which both participants and the researchers do not know which subjects are receiving the treatment. The purpose of double blind procedures is to prevent the bias held by the experimenters along with placebo effects.
Answer:
creo que lo que quiere decir es que cuando escribes te abres al mundo con tus sentimientos como en la p;intura quiere decir que te relajas al escribir o dibujar
posdata:si es para escribir tarea no es divertido jeje
A is definitly wrong because i just took it and this happen:
I think th eanswer is d. purchasing manufacturaing equipment! please tell me if this is right. Hope i helped!