Read the excerpt from "How a Cat Played Robinson Crusoe."

From now on, her life in the winter wild, though strenuous, was no longer one of any terrible hardship. With patience at the mouse holes she could catch enough to eat. In her snowy den she slept warm and secure.

Which words in the passage create a tone of confidence?
A snowy, winter
B warm, secure
C mouse, could
D life, any