Answer:
The statement "Socrates' doctrine that moral excellence was inborn reflected his Sophistic training" Is a true statement. This is further explained below.
Who is Socrates?
Generally, Socrates, an ancient Greek philosopher from the 5th century BCE, was one of the three most important thinkers from that era in Western philosophy with Plato and Aristotle.
In conclusion, This statement, "Socrates' notion that moral superiority was inborn mirrored his Sophistic upbringing," is correct.