Constitutional monarchy means that the parliament or the legislature makes the rules and the King of the country goes along with those rules. King James II of England refused to follow the constitutional monarchy and was kicked out through the revolution of 1688. This gave rise to constitutional monarchy in England.
The answer is false, because the bandwagon technique refers to the act of persuading an audience to buy or do something (as advertised) simply because others are doing it (lots of cigarette adverts use this technique, for reference). The type of propaganda defined in your question is the testimonial propaganda: "When a famous or figure endorses and supports a product, connecting the famous person with that product."
Answer:
The expansion of railroads impacts the development of the United States by creating jobs, establishing a national market, establishing a cattle industry on the Plains, and allowing certain people to acquire great wealth through investing in the railroad.
If I'm not mistaking i think it was 40 yrs