In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Q: Steven Harper:  Whenever you do n't know what to do , choose the hardest thing , because nine times out of _ ten _ , that 's the right thing to do .
A: 
times