Which of the following is/are true about Colombus' voyage? A. He underestimated the size of the earth.
B. He did not have enough food and water.
C. He did not understand the prevailing westerlies.
D. All of the above

The. Correct Answer would be D all of the above.

Explanation:

the three answers (for plato at least) are:

b-condemned sola fida 

d-set rules for establishing seminaries and for educating clerics in the seminaries 

f-recommended moderation in the sale of indulgences and banned the sale of false indulgences 

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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