Protection of the American colonies--colonies should pay for the debt.
Grenville believed the money spent to defend the colonies and place military permanently on post, should be paid for by the colonists themselves through taxation.
Grenville was Lord of the Treasury and later Prime Minister. He believed the colonists should pay for their own expenses which then allowed him to lower taxes on people living in England. Grenville was responsible for the hated Sugar Act and Stamp Act which brought many New Englanders together under the patriot cause.
Here is the answer of the given question above. According to Greenville, Great Britain has a large debt and who should pay that debt is that, they had a large debt because they have the duty to abide or follow the orders since America is not a separate colony yet and they need to continue to protect. Hope this answer helps.