I believe the answer is A i hope this helps!!!!
Answer:
A. it could not make the states work together
Explanation:
The Articles allowed the states to run themselves for the most part which caused lots of trouble with states dealing With each other and the national government trying to take control. That is why in 1787 the framers secretly wrote up the Constitution to allow the National government to actually rule like it was originally intended to
The correct answer is b.) All three developed progressively more accurate models of our solar system.
Indeed, Copernicus proposed the heliocentric model, placing the Sun as the center of the universe and not Earth, in the 15th century. Kepler discovered the three scientific laws of planetary orbit around the Sun in the 17th century. Newton created the laws of universal gravitation and motion in the 17th century as well, basing a good deal of his research on Kepler’s work.
