Read the excerpt from "Let Bindi Have the Limelight."

In Australia, spring begins in September, so for the Irwins, the new season began with unspeakable sadness. As the dust settled, though, a new beginning slowly and steadily took shape. To start fresh with hearts so badly broken was incredibly difficult, but it was also necessary. Terri and the kids were determined to do it for their supporters and fans, for wildlife everywhere and, of course, for Steve.

The information in this passage helps develop the idea that

A. families must work together to help wildlife.
B. a good attitude can easily mend a broken heart.
C. tragic events are a necessary part of life.
D. doing something positive can help people heal.