A is the answer, expansionism
The correct answer is a representative portion of a universe in which each member of the universe has an equal chance of being included
A random sample is a subset of individuals (the sample) randomly selected from a larger set (the population) by a process that ensures that: All individuals in the population are equally likely to be chosen for the sample.
The ruler of the Muslim empire created an enormous legal code for the empire? The answer is A.ottoman empire
The most correct option from those listed here is the second option: The assignment was originally due on Tuesday; however, the instructor changed the due date to Thursday.
The first and third options awkwardly have the word "however" capitalized in the middle of the sentence, and the last option uses the semicolon completely wrong (you're supposed to use it to connect two independent clauses).
Hope this helps. Do let me know if you have further questions.