When Coca-Cola introduced Coke Zero, this was an example of a strategy.

B) product line extension

Explanation:

The product line extension refer to the extension of the product that means introduction of a new item in the same category of product in terms of new flavors, colors, sizes, etc

Since in the question it is mentioned that the Coca-cola introduced the coke zero so this represent the product line extension strategy example

Therefore the correct option is B.

it's actually a very difficult task, due to not many people can make 2 million dollars in 2 years. besides that, to the not-so-realistic ideas, you can create a business. it could be practically anything, but make it into a business that isn't that known yet, you get me? also, lets not forget about stock market. that's where all the good stuff happens. use investments at the beginning and begin to raise up your business or whatever you're going to do. as this is a very non-realistic idea, it's still worth the shot!