Which is an appropriate response to this question: ¿a qué hora es la clase de español? (1: 00 p. m.)

Which sentence correctly combines the two sentences into a sentence with acompound verb? a moving into the unknown, the settlers left the familiar behind.b leaving the familiar behind the settlers moved into the unknown.c the settlers moved into the unknown and left the familiar behind.odthe settlers moved into the unknown, leaving the familiar behind.