Hello there,
Your correct answer would be "<span>passed by both houses of Congress and three-fourths of the state legislatures".
There is a process in which any law or </span><span>amendment to be added. It would be through the both the house of congress and the three-fourth's of the state.
Hope this helps.
~Jurgen</span>
The best option regarding Italy's terrain would be "<span>a. Fertile plains make it possible for farmers to grow a variety of crops," since Italy was home to some of the most thriving original civilizations due to this fact. </span>