Which sentence from the declaration of independence best develops the idea that king george iii abused his executive powers in relation to the colonies?

a. that to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed.
b. it becomes necessary for one people to dissolve its political bands which have connected them with one another.
c. he has refused his assent to laws, most wholesome and necessary for the public good.
d. it is their right, it is their duty, to throw off such government, and provide new guards for their future security.