13. The President and Congress have different views on climate change. Congress sent the president a bill requiring all cars must run on electricity. The president vetoed the bill. Which step is required to pass the bill over the president's
veto?
a) approval of the bill by a majority of each chamber/house of congress
b) approval of the bill by a majority of supreme court justices
c) approval of the bill by 2/3 of each chamber/house of congress
d) approval of the bill by 3/4 of the state legislatures