Which of these clues helps you understand what "secure' means? A. they lie.

B. slide.

C. attach.

D. must hold.​

C. attach.

Explanation:

In the passage, the words "...or attach..." come right after the word "secure" to further help the reader understand the intended meaning of "secure".

Secure means option c attach

realistic fiction depicts life and society in a true to life  manner.

its main characters are dynamic.

they grow and transform with their experiences, making it easier for readers to  relate to them.

this genre primarily focuses on the  daily struggles  of ordinary people, validating their experiences.

hope that ! : )