The topic sentence that should be added to this body paragraph is 1. Local community programs provide opportunities for volunteers to share their expertise.
It says here that they share their knowledge and learn more about the things they can do to help others.
It's often futile to try to convince people that they should adopt a particular political position, but if you try, make sure to appeal to logic. Try to eliminate as much emotion from your argument as possible.
D. because it said between a blurred sagacity which means unleaded judgment.