One of the following is not a requirement of experimental design:.
A) Multiple measures must be taken before and after exposure to the independent variable
B) The independent variables are introduced or manipulated, one at a time, by the researcher
C) There are one or more control groups that are not exposed to the independent variable.
D) Research participants are randomly assigned to experimental and control groups

Canada economy usa test prep i am stupid i don’t get it

Danilo has been working for metropolitan taxi for three months. he expected that his job would be to drive around the city, pick up fares, and drop them off at their desired locations, but in his first few days on the job he realized that the job entails much more. he must keep his taxi cab clean and neat, and some days he will be stationed at the shop and go to people's houses to pick them up and bring them to the local airport. within a few months, he has learned that taxi drivers often express frustration with the people they call "civilians"—that is, non–taxi drivers, whose driving skills they complain about incessantly. in his first few months on the job, describes what danilo is undergoing.

Take a moment to consider other countries and their form of government. select a country that does not utilize the same form of democracy that the united states uses, identify the country you chose and compare their form of government to the u.s. how are the different types of government the same? how do they differ? which type of government do you think is more beneficial to it's citizen's?