Question:
No, none of those factors account for the recent warming.
You don't know if those factors account for the warming, or not.
Answer:
3

Question:
Washington: More Than 100 Are Charged in Medicare Fraud Sweep
Washington: Court Upholds Voting Rights Act in Alabama Case
Answer:
1

Question:
Weak earnings drag US stocks lower in early trade
Weak earnings drag stocks lower on Wall Street
Answer:
4