"Austin arrived at Saltillo and was presented an order from the most excellent vice-president for his arrest and conveyance to Mexico as a prisoner to answer
charges that the government had to make against him, without saying what they
were. In the judicial department there has never been the proper organization,
and it may be said with well founded reason that in this branch there is not, nor
has there been, any government in Texas."
- Explanation to the Public concerning the Affairs of Texas, by Stephen F. Austin
Which principle was Austin describing was violated by Mexico?

A. Popular Sovereignty
B. Republicanism
C. Federalism
D. Separation of powers

What is the difference between an observational study and an​ experiment? choose the correct answer below. a. in an​ experiment, a treatment is applied to part of a population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. b. in an​ experiment, a treatment is applied to an entire population and responses are observed. in an observational​ study, a researcher measures characteristics of interest of an entire population but does not change existing conditions. c. in an​ experiment, a researcher measures characteristics of interest of a part of a population but does not change existing conditions. in an observational​ study, a treatment is applied to part of a population and responses are observed. d. in an​ experiment, a researcher measures characteristics of interest of an entire population but does not change existing conditions. in an observational​ study, a treatment is applied to an entire population and responses are observed.