classes at the local high school currently start at 7:30 a. m but the principal is thinking about shaving classes later at 9:00 a. m , and wants to know how the public feels about her idea​

Two students are discussing electricity that has a frequency of 60 hz. student a says that this type of electricity is referred to as ac. student b says that in this type of electricity, the electrons flow in only one direction. which of the following statements is correct? a. only student a is correct b. only student b is correct c. both of the two students are correct d. neither of the two students is correct