Which notable achievement did Jimmy Carter receive for his humanitarian work after his presidency?

Jimmy Carter was awarded the Nobel Peace Prize in 2002, recognizing his extensive humanitarian efforts after his presidency. This prestigious award highlighted his dedication to promoting peace, democracy, and human rights worldwide. Carter's post-presidency activities included founding the Carter Center, which focuses on global health initiatives, conflict resolution, and democratic governance. The Nobel Committee acknowledged his longstanding commitment to addressing international issues and his efforts in fostering peace through negotiation and cooperation.

While Carter has also received the Presidential Medal of Freedom and has earned Grammy Awards for his audio recordings, the Nobel Peace Prize stands out as a distinct acknowledgment of his humanitarian endeavors on an international scale, making it the correct answer to the question.