It would be the "Necessary and Proper Clause" that establishes many implied powers of Congress, since this allows Congress to do whatever is "necessary and proper" to keep the United States functioning.
The correct answers are "Economic", "Indigo", and "Customer".
Since its establishment during the 18th century, the British East India Company saw India as a sourcing point for numerous goods that were later taken to Great Britain, including Indigo, which is used for coloring clothing.
On the other hand, the vast population of India made the territory a potential market for goods manufactured by the British. This also made many businessmen very wealthy during the years of British Colonization of India.
