It is "The bill is then sent to the Executive branch, where the bill will be either signed or vetoed." Because the bill os then sent to the president who is the executive branch.
Forces that energize, direct and sustain a person's efforts are called motivation. It is also a person's drive to do a certain behavior repeatedly to achieve his wants and needs. Sometimes, a person would not stop doing something not unless they would be able to get the outcome or goal.