Which of the following is a type of sound reasoning?
a. ad hominem arguments
b. transfer
c. problem/solution
d. circular reasoning

Problem/solution

Explanation:

Sound reasoning implies following a logical sequence in thinking and reasoning, ignoring biases and avoiding fallacies, and avoiding redundancy. Analyzing a problem and then looking for a solution is the most effective way of solving one. By looking objectively at causes, identifying the effects of the problem and coming up with an unbiased and logical conclusion you can solve a problem effectively.

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!

the density would be a smaller number.