Which of the following works were edited by gay activists, writers, or artists:
A. Are We Not Men? by Philip Brian Harper
B. Charisma by Erica Edward
C. Extravagant Abjection by Dariek Scott
D. Signifying Monkey: A Theory of Afro-American Criticism by Henry Louis Gates
E. Playing in the Dark: Whiteness and the Literary Imagination by Toni Morrison
Choose the correct answer from the options given below

The correct answer is A, B, C only.

Let us analyze the works listed to understand why they are associated with gay activists, writers, or artists:
A. Are We Not Men? by Philip Brian Harper:
This work, subtitled "Early Black Histories of the New Queer Cinema," or examining gender representation and black masculine identity, is written by Philip Brian Harper, an influential scholar whose work deeply intersects with queer theory, African American literature, and gender studies.

B. Charisma by Erica Edward:
Erica R. Edwards's work explores the structures of leadership, gender, and sexuality in African American literature and culture, incorporating queer and feminist critiques of traditional charismatic authority.

C. Extravagant Abjection by Dariek Scott:
Subtitled "Blackness, Power, and Sexuality in the African American Literary Imagination," this book is written by Dariek Scott, a creative writer and scholar whose work focuses on queer theory, black masculinity, and gay themes.

D. Signifying Monkey by Henry Louis Gates:
This is a seminal work of African American literary theory focusing on the concept of "signifyin'". While foundational to African American literary criticism, it is not primarily edited or written from the perspective of gay activism or queer studies.

E. Playing in the Dark: Whiteness and the Literary Imagination by Toni Morrison:
Toni Morrison's literary criticism focuses on the Africanist presence in the white American literary imagination. While highly influential in critical race theory and American literature, it is not categorized under gay or queer activist editing/writing.

Therefore, options A, B, and C represent the works edited or written by gay activists, writers, or artists. Hence, the correct choice is A, B, C only.