Question

Because babies learn so much through their mouths, it is crucial to keep a baby's environment clean and safe _____.

to keep babies from getting a cold
so babies don't fall down the stairs
so babies feel comfortable in their home environment
so babies can explore without fear of choking or eating something harmful

Answer 1

so babies can explore without fear of choking or eating something harmful.

This is correct because since babies learn through their mouths, you wouldn't want them to choke on something they were interested in.

Answer 2

so babies can explore without fear of choking or eating something harmful