Help me with this little quiz please

Social health is a. to have satisfying relationships. b. to have a support network of friends and family. c. to make positive contributions to your community, country, and world. d. all of the above

Describe the concept of interval training. what is the benefit of this type of training?

Larry is taking a walk in the park, the pollen in the air makes him sneeze consistently what line of defense is his immune system exhibiting