What Is a Major Reason That People Become Allies, According

What is a major reason that people become allies, according to Blankschaen and Zhu?

A) They understand that activism is an important and meaningful part of a life well-lived
B) They personally know someone who is or has been mistreated for being LGBT
C) They are passionate about defending the concept of "the LGBTQ community"
D) They are themselves members of the LGBT community
E) They want to form bonds with members of the LGBT community to gain their support on other issues