Correct option is C
You are given three statements:
1. All blues are bears.
2. All brides are bears.
3. All brides are children.
From the given statement possible Venn diagram will be.

Which of the following conclusions is/are true?
A. Some children are bears. (True, so at least some children (those who are brides) are bears).
B. Some blues are children. (False, there is no connection between blues and children in the given statements).
C. Some blues are brides. (False, blues and brides are both bears, but that doesn’t mean blues are brides).
D. Some brides are not children. (False, the statement clearly says all brides are children).
Only A conclusion is true.
Thus, correct option is (c).