Problem: The Copenhagen Consensus Center is a US non-profit think tank, founded and headed by Bjrn Lomborg. The Center organizes the Copenhagen Consensus, a conference of prominent economists held every four years, where potential solutions to global issues are examined and prioritized using cost-benefit analysis.

Based on the paragraph above can we conclude that "The Copenhagen Consensus Center is a very effective conference."?

A: It's impossible to say

Problem: The Feed icon is for indicating that a web feed is available on a web page. It was originally invented for the use of RSS, but it is also common for Atom and other web feeds now. The icon is normally orange, with hex code #FA9B39. The original icon was created by Stephen Horlander, a designer at Mozilla.

Based on the paragraph above can we conclude that "The icon is normally orange, with hex code #FA9B59. The original icon was created by Stephen Horlander, a designer at Mozilla."?

A: No

Problem: Rohan Bopanna and Daniel Nestor were the defending champions, but chose not to compete together. Bopanna played alongside Florin Mergea, but lost in the first round to Nestor and Radek Stepanek. Nestor and Stepanek lost in the quarterfinals to ukasz Kubot and Marcin Matkowski.<br>

Based on the paragraph above can we conclude that "Nestor had previously been a champion"?

A:
Yes