Answer:
The two statements are B and C.
Explanation:
<u>To be able to prove that Trudy is Calvin's aunt, we need to put together sentences that have enough information to explain who they are and how they are related.</u>
Let's first see a combination that wouldn't work:
A. Michael has a son
C. Trudy is Michael's sister
From the sentences above we learn that Trudy is an aunt, since her brother Michael has a son. However, we do not know his son's name and cannot, therefore, prove it is Calvin.
<u>The only combination that will provide all the necessary information is:</u>
<u>B. Michael is Calvin's father</u>
<u>C. Trudy is Michael's sister</u>
<u>Now it is easy to prove what we need. Trudy and Michael are brother and sister. Michael has a son named Calvin. Trudy is Michael's son aunt. Trudy is Calvin's aunt.</u>