Select all that apply. American POWs
O were mostly airmen who were shot down over North Vietnam
were not given adequate food or medical care
communicated with one another using a tap code
were never tortured by the North Vietnamese

I guess the answer is the 3rd one.

the answers is b.   environments.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: