Answer:
He means that he'd rather cause a disagreement than give no answer at all.
Answer: Part A: D They separated into different groups long ago.
Part B: The answer is: "it also seems like they didn't mix much with outside groups until the arrival of Europeans in the seventh century"
Explanation: I took the test hope this helps!
He wishes his father would just listen to him about what happened to him in Vietnam and all the horrors he went through and give him credit for the 7 medals he had received for his efforts in the war. However, his father was in a rather depressed state and did not see medals as a measure of a man's ability or heroism. All his son wanted to do was get some of the pressures of the war off his chest and be admired some by his dad but it was useless and it just had to keep it inside. The guilt and the good that he felt was a burden he carried. He also wished his father would recognize what a good soldier he himself had been instead of withdrawing to himself after the war. As a result he sees and feels no use for his life after the war
The singular noun in this sentence would be the word "Sand" because it's talking about the "Hot sand".
He walked across the hot "sand", hot is used to describe the word sand.
Thus your answer.... B. sand.
Hope this helps. :)
