Read the excerpt from "Daughter of Invention".

But Laura's inventing days were over just as Yoyo's were starting up with her school-wide success. Rather than the rolling suitcase everyone else in the family remembers, Yoyo thinks of the speech her mother wrote as her last invention. It was as if, after that, her mother had passed on to Yoyo her pencil and pad and said, "Okay, Cuquita, here's the buck. You give it a shot."

Which context clue provides the best hint for the meaning of the underlined idiom in this excerpt?

But Laura’s inventing days were over
the rolling suitcase everyone else in the family remembers
Yoyo thinks of the speech her mother wrote as her last invention
after that, her mother had passed on to Yoyo her pencil and pad