Final answer:
Zheng He sailed around the Indian Ocean linking China with new markets along the coast of East Africa, India, and Southeast Asia.
Step-by-step explanation:
The correct answer is a) Zheng He. Zheng He was a Chinese explorer who sailed around the Indian Ocean linking China with new markets along the coast of East Africa, India, and Southeast Asia. He embarked on seven expeditions between 1405 and 1433, bringing thousands of vessels with him. His goals for exploring the Indian Ocean included exploring and mapping the region, establishing trade with port cities, and incorporating new areas into the Chinese tribute system.