Answer:
C. marriage
Explanation:
The selection from the Navajo Origin Legend shows the origin of "marriage".
The Navajo Origin Legend is known as a creation myth on how the first husband and wife were created. In the creation myth, it is told that the white ear of corn turned into a man and the yellow ear of corn became a woman. It's said that the wind gave them life. They are the First Man and First Woman. They were later directed to build an enclosure made of brushwood. When it was finished, they entered there as husband and wife.
So, the selection shows the origin of "marriage"
Answer: A: My sister is excited that her swim team earned a championship and that her debate team won its first tournament.
Explanation: In this sentence the common word "that" is used ("that her swim team" and "that her debate team") leading me to believe that A is the answer.
If you want to incorporate 'for a year", you would need to say 'I have been in Poland for a year.'
But as 'been to' suggests just a visit and not a long stay, you may want to use "I had gone to Poland a year ago.'