Portuguese trade in India was markedly different from their trade in the Americas in several key ways. Among the options you've provided, the most accurate distinction is:
It involved exchanges with traders from China and Southwest Asia.
In India, the Portuguese engaged in not only trade of spices but also interacted with a complex network of existing trade routes and established traders from regions such as Southeast Asia and the Middle East. They established trading posts rather than full-scale colonies, as seen in the Americas, where resources such as gold and silver were primary motivations, leading to extensive colonial settlements and violent conflicts with indigenous populations.
In contrast, while there was some violence in attempts to control trade and establish dominance, the nature of trade in India was more about integration into existing trade networks, rather than outright colonial settlement as was the case in the Americas.