Final answer:
Improved infrastructure, modern education, and access to global markets were three benefits of colonial rule in Southeast Asia.
Step-by-step explanation:
Colonial rule in Southeast Asia had both positive and negative impacts. Three benefits of colonial rule in Southeast Asia are improved infrastructure, modern education, and access to global markets. European powers constructed railroads, roads, bridges, and ports, which helped in the transportation of goods and people. They also introduced modern education systems, which provided opportunities for the local population to acquire knowledge and skills. Additionally, colonial rule exposed Southeast Asian countries to global markets, leading to the export of their raw materials and the import of goods.