A student is writing a narrative for her creative writing class about a character who is trying her first-ever tennis lesson. Read the draft of the narrative and answer the question that follows.

As Mary approached the tennis court, she realized her shoe was untied and bent over quickly to tie it. As she did, her nervousness multiplied at the thought of who would be in her class, how she would perform, and if she would ever actually make contact with the tennis ball at her first tennis lesson. Ever since her friend Lila talked her into taking lessons, Mary had been terrified of this day. She badly wanted to learn the important stuff about tennis so she could play with Lila, but she was afraid of making a fool of herself at her lesson. She finished tying her shoe and slowly made her way to the court.
What is a more concrete or specific phrase to replace the underlined phrase?
A. history of
B. things about
C. components of
D. past and current players in