7. Assuming that the policy did not change preferences for parents to have children of a specic gender, which of the following statements are necessary to reject the unitary model? (e) Keeping everything else the same, an increase in income from tea increased the share of girls (f) Keeping everything else the same, share of male increased after the reform (g) Keeping everything else the same, tea growing region had higher share of males for cohorts born before the reform (h) Keeping everything else the same, an increase in income for orchard did not change the share of girls