Xiaoming traveled to Vietnam, Myanmar, Thailand and Indonesia in Southeast Asia with his parents in the summer vacation. He gained the following two profound feelings during his trip.

Southeast Asia is located in the southeast of Asia, including Indochina Peninsula and Malay Archipelago. Indo-China Peninsula is dominated by tropical monsoon climate. Due to the uneven distribution of precipitation during the year, it is divided into dry season and rainy season. The equator crosses the central Malay archipelago, and most of the archipelago belongs to the tropical rainforest climate, with high temperature and rainy all the year round. Vietnam, Myanmar and Thailand are located in Indo-China Peninsula and have a tropical monsoon climate. Indonesia, on the other hand, is located in the Malay archipelago, close to the equator, with a tropical rain forest climate, and it basically rains every afternoon.

Therefore, choose: d.