The president spoke to 19 congressmen from texas to encourage them to vote for a bill. since four of the 19 congressmen went on to vote for the bill, it is clear that the president persuaded those four to vote the way they did. the argument above assumes that:

21% are in agreement with the president

Explanation:

Its assumes that only 21% of the 19 congressmen he spoke to, are convinced by the president .

4 of 19 is 21%. And the remaining 79% (15) are not in agreement with the president.

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.