Which statement describes how geography influenced the cultural development of Southeast Asia

A. Open seas protected the indigenous cultures of the island nations from outside influence
B. Distance from Oceania prevented the migration of austronesian language beliefs and technology
C. Proximity to China encouraged the spread of Buddhism and other practices South into Indonesia
D. Sea routes connecting to India ensures to prevalence of Hinduism over Christianity and islam

C. Proximity to China encouraged the spread of Buddhism and other practices South into Indonesia