The proclamation of 1763 and the Quebec act of 1774 both helped lay the groundwork for the American revolution because they each

interfered with colonial claims to western lands

Explanation :

The American revolution began as a means of resistance against Britain. With the proclamation of 1763 and the Quebec act of 1774, they were limiting the colonies power by abusing their own power.

answer; ///i believe its(b) they merge because of the strong gravitational pull they exert on each other;

ek = (m·v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) ·v2/2

ek = (200 + 250) ·2,32/2 = 450·5,29/2 = 1190,25 j