The correct answer is "In the past, coffees were blended to suit a homogenous popular taste, B. But many different coffee flavors are now being produced.
Explanation
The above fragment is an example of contrasting phrases because it expresses two different ideas that have contrast. In this case, the first idea refers to an action in the past on the coffee mix, and the second idea refers to the current production of different flavors of coffee. This shows a sentence in which the two ideas contrast and address the same topic. Also, one of the most used connectors for contrasting sentences is but. So the correct answer is B. But
