A. is the most sensible answer tbh, the librarian is inside a library she/he wouldn't really pay attention to kids. Books on gender roles may be in there a bit but not completely since it won't really talk about what you're trying to search for. Articles on phycology definitely isn't going to helped learn about children on the playground.
Answer:
IT IS A VERB
IT MEANS: lower one's body briefly by bending one knee to the ground, typically in worship or as a sign of respect.
show deference or servility.
SENTENCE EXAMPLE: "politicians had to genuflect to the far left to advance their careers"
Explanation:
