What element do rosh hashanah and yom kippur share?

they both celebrate the start of a new year.
they both are considered high holy days.
they both involve fasting and reflection.
they both occur during the spring time.

Two of these describe "federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a "unitary" and a "confederate" system.