Which two of the following sentences from the article include CENTRAL ideas of the article?

However, they placed many checks and balances on the legislature that have prevented it from having total power.
Although this power is still honored today, it has blurred over the years.
Congress must pass a bill that states the money available for government programs.
The U.S. Congress has more power than any legislature among the world's modern democracies.
A
1 and 3
B
1 and 4
C
2 and 3
D
2 and 4