Brain-teaser Monday.

There's a new Coke Zero campaign that has just debuted. One of the tv spots centers on cloning. A Coke Zero spokesman begins with the following, "It's 2010. What happened to cloning ourselves. I mean if we at Coke Zero can copy real Coke taste with zero calories why can't you have more yous...

Without going Joelapompe on everyone, here's a ad from a spec campaign for Edison Light Beer that works off a similar premise, only reversed.

How many years before the Coke Zero campaign was this ad conceived?

• 3 years
• 4 years
• 5 years
• 6 years

Answer to last week's brain-teaser: Disclosure; Mad Dogs and Englishmen; The Client; The 39 Steps; 24 Hour Party People