The marriage of isabella and ferdinand a. united france and england. c. united castile and aragon. b. united moors and christians. d. united jews and christians

  C. United Castile and Aragon.

Explanation:

  Isabella I of Castile reigned as Queen of Castille from 1474 until her death. Ferdinand II of Aragon was King of Aragon from 1479 until his death. They married in 1469 and was the basis for the political unification of Spain and the foundation of the Spanish monarchy.

  I hope this answer helps you.

c. taught scientists many new things about the earth, but not other planets.

explanation:

are there actual statements because if not my answer would be: that using the five senses the author can create a sense of worth in an object to appeal to the reader and create meaning.