The answer to this question can be quite subjective. Some people will say that the telephone is the most important invention, or the automobile, or the plane, but for me personally, I'd choose antibiotics.
It is a modern-day invention (as opposed to the Middle Ages, for example) which changed our lives for the better. Before penicillin was discovered in the 1920s by Alexander Fleming, people were constantly dying because of most harmless diseases. But after antibiotics were invented, people were given a chance to recover from their illnesses much more easily.
Answer:
B. It has remained the practice to this day.
Explanation:
Knowledge in this area.
The President (aka Executive Branch) is responsible for implementing legislation and executive orders. The US Constitution gives the president this power, as Article Two outlines the expectations and rights of the executive branch. This power given to the president can be checked by other branches of the federal government though, as the Supreme Court has the power of judicial review. This means the Supreme Court can rule acts of legislation or executive orders as unconstitutional.