SAT English Practice Question

The following text is adapted from a blog post about the importance of reading. \"Reading is important because it allows us to see the world through the eyes of others, to understand different perspectives, and to expand our own horizons. To do this, we need to be willing to step outside of our comfort zones and to challenge our assumptions. " Which choice completes the text so that it conforms to the conventions of Standard English?

1. A.Yet to do this, we need to be willing to step outside of our comfort zones and to challenge our assumptions.
2. B.To do this, we need to be willing to step outside of our comfort zones and challenge our assumptions.
3. C.Yet to do this, we need to be willing to step outside of our comfort zones, and challenge our assumptions.
4. D.To do this, we need to be willing to step outside of our comfort zones, and to challenge our assumptions.