Which two statements, when read together, prove that Trudy is Calvins aunt?

a Micheal has a son

B Micheal is calvins father

C Trudy is Micheals sister

D Trudy has a nephew

F micheal is older than trudy

B and C

Explanation:

When read together it says that Trudy is Micheal's sister and Micheal is Calvin's father meaning that Calvin is Trudy's nephew and Trudy is Calvin's aunt.

The two statements are B and C.

Explanation:

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.

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.

The only combination that will provide all the necessary information is:

B. Michael is Calvin's father

C. Trudy is Michael's sister

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.