Assuming you can pick more than one, the correct answers are
'It shows us what it means to be human.', because people in the past have made amazing discoveries about many things, including ourselves, and we've learned so much about ourselves because of history.
And 'It helps us improve judgment.', because we learn from the mistakes people in history have made, and help us improve.
Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
