Oamara is researching the effects of screen time on children’s ability to pay attention. Which resources would be the most likely to have useful information?

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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the answer would be d. he tells the story through a teenage narrator.