B. They didn't have to be built next to streams and bodies of water.
Answer:
Option: d. advanced the cause of a southern route for the transcontinental railroad.
Explanation:
In 1853, James Gadsden bought a strip of land from Mexican for $10 million. The Gadsden Purchase was a treaty in which the United States got some land from Mexico present Arizona and New Mexico. The purpose of this land was to build a railroad to California called the southern transcontinental railroad.
Answer: They show it is possible to succeed through determination
Explanation: These two sentences: "With spotters helping, Miguel attempted the same movements, but his flip spun a little sideways. He didn't let that stop him." indicate that while Miguel experienced a setback with performing a flip (the spin sideways), he "did not let that stop him".
This shows his determination, which pays off in the end as indicated by the sentence: "Miguel kept practicing, and by the end of the session his flip was much improved."
