The practice which is not sound in conducting individuales is C) conducting in-person interviews and telephone interviews in the same poll.
In-person interviews deliver the most representative results. Telephone surveys provide a good alternative but they need using a larger sample.
Answer:
It is Apollo 8
Explanation:
Apollo 8 was the first program that actually brought people to the moon.
Either C or D. I would assume D because the southern states were made military districts.
