Modern language association
Ruth Ginsburg was a very powerful woman who is mostly known for her fight for women's rights. She is the main reason that women have rights today. Without her, women are at a risk of loosing their rights. Though she is known for primarily fighting for women's rights, she also fought for LGBTQ+ and men rights in her time alive. Ruth Ginsburg will forever hold a huge part in history. She fought for the future of billions of people, she is the reason women and LGBTQ+ rights exist.
The pronoun that correctly completes the sentence is the pronoun "Who". So the complete sentence would be: "About who was the article written?" We used the pronoun "who" because it is used as the subject of the sentence, therefore a subjective pronoun should be used. The "whom" pronoun is an objective pronoun and should be used only as a direct object.