The correct answer is A) most people in the region practice either Islam or Buddhism.
The other options of the question were B) no country in Southeast Asia has a Christian majority. C) Hinduism is the most practiced religion in the region. D) Shintoism eas founded in the region and is still widely practiced today.
The statement about religion in Southeast Asia that is true is "most people in the region practice either Islam or Buddhism."
When we talk about Southeast Asia, we are referring to countries like Laos, Thailand, Vietnam, Indonesia, and Cambodia. The most dominant religion in the region is Islam with approximately 240 million followers. Muslim people arrived in this region in the 9th century due to trade activities but it also served to spread Islam.