Letter of apology to my mom for having bad grades help asap

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.

if you need any clarification or more explanation pls do mention in the comment section.

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adding more details about the struggle rainsford experiences as he swims to the shore