Final answer:
Thr statement is True. When there is product parity and a proliferation of choices in the market, the power in the buyer-seller relationship shifts towards the buyer, making the statement true.
Step-by-step explanation:
The power in the buyer-seller relationship does indeed shift to the buyer when the product is at parity and choices are proliferated. In a market with a profusion of similar products and many alternatives available, buyers gain more influence because they can easily switch to a different seller if their needs are not met or if they find a better offer. Therefore, the correct answer to the statement 'The power in the buyer-seller relationship shifts to the buyer when the product is at parity and choices are proliferated' is true.