Which beverage is named after an iconic figure associated with a specific charitable cause?

The Oprah Herbal Chai is named after Oprah Winfrey, an iconic figure known for her philanthropic work, particularly in promoting education and wellness. This beverage is not only a tribute to her but also aligns with her support for various charitable initiatives, including her foundation, which focuses on education and empowerment. By associating the drink with Oprah, Starbucks connects the beverage to her legacy and the positive impact she has made in society, emphasizing a commitment to charitable causes.

The other options do not carry this same association with a specific charitable initiative or notable figure, which is why they are not the correct choice in this context.