Final answer:
The items mentioned are tea blends with Ceylon tea noted for its cleanliness. Coffee originated from Ethiopia and became popular through European coffeehouses.
Step-by-step explanation:
The listed items - Earl Grey, Paris, organic green with citrus and ginko, and decaf Ceylon - are all tea blends, not coffee blends, espresso variants, or cocoa variants. Ceylon tea, mentioned here, is known for being the cleanest tea according to the International Organization for Standardization (ISO) and is grown in Sri Lanka. Coffee, originating from Ethiopia, became popular in the Ottoman Empire and the coffee-drinking habit spread to Europe. The first coffeehouses opened in major European cities such as Istanbul, Venice, London, and Paris, where the practice of socializing over coffee and pastries like croissants began.