Answer:
The second option
Explanation:
When countries enter pacts or alliances, theyre expected/obliged to support that country by either fighting with them or giving supplies. SImilar to how America is giving Ukraine money and weapons to help fight russia.
The answer is C.
As a science website says, "Scientists think they know why the Ancestral Puebloans disappeared. The primary culprit, studies suggest, was a megadrought that would have made it impossible to grow enough food to feed the tens of thousands of people living in the region."
If you didn't know, drought represents the lack of rain.
C, it made it okay to discriminate against african americans.