Final answer:
Atticus Finch values the protection of the innocent, as implied by his statement about it being a sin to kill a mockingbird, despite allowing the children to shoot bluejays. The mockingbird symbolizes innocence in Harper Lee's novel, revealing Atticus's stance on justice. A is the correct answer.
Step-by-step explanation:
Atticus Finch's sense of justice is revealed when he tells his children that they can shoot all the bluejays they want, but 'it is a sin to kill a mockingbird.'
This statement suggests that Atticus values protecting innocent and defenseless beings. In the context of Harper Lee's novel, To Kill a Mockingbird, the mockingbird symbolizes innocence and goodness, creatures that do no harm but provide pleasant music for all to enjoy.
Therefore, the correct option in the final answer that reflects Atticus's sense of justice is option a: He values protecting innocent and defenseless beings.