Which of the following is correct? a. mao zedong originally encouraged large families. c. china tries to regulate religion to encourage unity. b. there is now a “one couple, one child” policy. d. all of the above

Mao Zedong originally encouraged large families, however there is now a "one couple, one child" policy, and China tries to regulate religion to encourage unity. Therefore, D. all of the above, is the correct answer!

D. all of the above!