Answer:
Option B, Option C and Option D.
Explanation:
After reviewing some demographic trends of the US. It is evident that the number of teenagers (under 18 years of age) are increasing (option B). Furthermore, a the Hispanics are becoming the largest among all the minority groups. Consequently, this means that number of Hispanic children will also be also increase in future (option C). These conditions may be credited to better healthcare, higher attention towards minority rights and better living conditions.
Single-parent households are also on the decreasing trends as more couples are beginning to cohabit i.e. living together without marriage (option D).
For the remaining option A, the proportion of black children remain almost the same.
P.S. As attaching links is not allowed here, I can only provide this information that all statements are made after checking for relevant trends.