Which of the following is true with regards to the navigation acts by the eighteenth century?
a) the navigation act of 1696 abolished the american customs service.
b) the acts replaced the colonial admiralty courts
c) the colonists became used to buying and using british goods

"The colonists became used to buying and using British goods" is the one among the following choices given in the question that is true with regards to the Navigation Acts by the eighteenth century. The correct option among all the options that are given in the question is the third option or option "C". 

Cwould be the answer