We turned to go, but then Miz Thomas said, "That Mitchell, he done somethin'? He in trouble?" "We just want to talk to him, Edna," Hammond assured her. Still, though, as we rode away, I saw Miz Thomas frown, and young as I was, I knew she was worried. She was worried because my brothers had come. My brothers had come asking about Mitchell, and my brothers were white.

—The Land,
Mildred D. Taylor

Based on the novel’s historical context, what causes Miz Thomas to frown?

She's worried that white boys are asking where her son is. Mitchell is black while Paul's brothers are white, and there are tensions between formerly enslaved and white people at that time.

Explanation:

b. they require a huge investment of time, dedication ,training, and patience almost from the day they are born.

explanation:

the sentence gives a clear evidence of how carefully the sar dogs are selected and also specify from what time this exercise begins."almost from the day they are are born." this sentence shows as that this exercise begins early.

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