Read the following excerpt from The Hero Project by Robert and William Hatch.

FLORENCE GRIFFITH-JOYNER: Before I actually started competing in track and field we used to race in the neighborhood where I grew up in south-central Los Angeles. I said, "Wow. Wouldn't that be nice for me to be able to feel this good about something I love so much for the rest of my life?" So I chose, at a very early age, to continue running throughout my entire life. And again, it's so important that whatever you do in life, that you enjoy it.

Which transition word indicates that additional information is being added?

A. so
B. again
C. before
D. and