What was the biggest key to the success of Great Britain and the Netherlands in their expansion of Indian Ocean trade in the 17th and 18th centuries

Establishment of Large Corporations

For Great Britain : British East India Company

For Netherlands: Dutch East India Company.

Explanation:

For Great Britain: British East India Company, established in 1600.

For the Netherlands: Dutch East India Company: established in 1602.

The purpose of these establishments is to assist the commercial body of each country's traders, particularly for the transactions in the East Indian region, which involves commodities such as spices, cotton, silk, indigo, tea, opium, and the slave trade.

In other words, the purpose was to assist each of the countries in the areas of trade, exploration, and colonization. They helped in financing through the selling of stocks or shares to many investors

an earnest tone.

because portia wants to know why brutus has been acting strange lately.