Q: 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.
Anastasia Chang: These numbers , discovered in different cultures , in different centuries , all add to _ zero _ , proving the universe is perfect . Proving the existence of * God*.
Dr. Susan Lewis: Hey , I ca n't even prove I paid my gas bill .
A:
numbers