Providing assistance to people in need though programs is known as?

Which statement is most correct about self esteem?

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.

This is a negative reaction to food that doesn’t involve the immune system