SANTIAGO, Dec 15 (Reuters) – Chile will go to the polls to elect a new president on Sunday, a stark choice between leftist former student protest leader Gabriel Boric and ultra-conservative Jose Antonio Kast. After a fragmented first-round vote, both candidates have shifted towards the center to attract moderate voters, though still offer wildly different views for the future of the copper-rich Andean nation of some 19 million people. Here are some of their key policies. SOCIAL ISSUES: Boric has pledged to make advances on issues of gender equality and reproductive rights, including loosening Chile’s strict abortion rules, and improve inclusiveness for the LGBT community. Kast is opposed to same-sex marriage and abortion, preferring to focus on “family-focused” policies such as family payouts, formal recognitions for childcare work and incentives to have babies. He has made promises to improve women’s rights.