Which Idea for a New Start-Up Comes from an Accidental

Multiple Choice

Which idea for a new start-up comes from an accidental discovery?

A) a coin collector who learns the value of his collection and decides to sell some at coin fairs
B) a salesperson who likes the bamboo chairs he sees while on vacation and opens his own furniture store selling bamboo-style furniture
C) a sharpshooter who shoots holes in a pair of her boyfriend's jeans during an argument and then hears him receive compliments on the way they look
D) a chef who finds his mother's old recipes and decides to write a cookbook based on them