Hi .. Is here any one know Korean? I have a lot of questions in Korean grammar

47. a student is frightened by a loud noise, which results in a hormone being released into the blood. the hormone causes the student's heart to beat rapidly. the two systems that work together to cause this reaction are the endo- crine system that secretes the hormone and the (1) nervous system (3) excretory system (2) reproductive system (4) digestive system

What statement would cause polarization

Which of these means "long verse poem"? a. haikai b. zoku c. kigo d. ch? ka