What does point H represent in this context?

A.) Chanas distance from the starting line at a time when she is behind josiah

B.)Josiahs distance from the starting line at a time when he is behind Chana

C.)Chanas and Josiahs distance from the the starting line at the time when Chana catches up with josiah

D.)Chanas distance from the when she is farther than josiah

PLS MAKE SURE YOU’RE CORRECT!!