Answer:
False
Step-by-step explanation:
This is an example of a failed vertical integration, not failed diversification. Coca Cola generally doesn't produce any Coke itself, it mostly licenses it Coke production. It started to vertically integrate bottlers during the 2008-2010 financial crisis, since the largest Coke bottler in the world operated in Greece (it supplied Coke to most of Europe). After Greece collapsed, Coca Cola purchased the bottler and relocated its headquarters to Switzerland.
Since the bottlers themselves only sell Coke and related products (diet Coke, Coke zero, Fanta, Sprite, etc.) it cannot be considered a product diversification because no new product was added to Coca Cola's product line and no new market was served.