What is the name of the Fraternity's signature fundraising activity related to baseball?

The correct answer is "Strike Out Arthritis!" This fundraising activity is particularly significant for Alpha Omicron Pi, as it highlights the organization's commitment to philanthropy and community service. "Strike Out Arthritis!" is centered around baseball-themed events designed to raise awareness and funds for arthritis research and support, aligning with AOII’s national philanthropic focus on the disease.

This initiative not only promotes community engagement through fun and interactive activities but also serves as a platform for AOII members to educate others about arthritis and the importance of research and resources for those affected. The name itself creatively connects the sport of baseball to the cause, embodying AOII’s spirit of combining fun with purpose-driven philanthropy.

In comparison to the other options, while they may suggest exciting fundraising activities related to baseball or charity, "Strike Out Arthritis!" stands out by directly linking the fraternity’s philanthropic mission with a specific and impactful cause. The other choices do not have the same recognition or established signature connection with AOII’s core values and initiatives.