Step 1: Understanding bidding in commerce.
The question describes a process where customers are allowed to offer a price for a product through competitive bidding. In this process, multiple buyers compete by offering higher prices, and the product is sold to the highest bidder.
Step 2: Meaning of Auction.
An auction is a method of buying and selling goods or services where buyers place bids, and the highest bidder wins the item. Auctions are commonly used for selling antiques, artworks, rare collectibles, and even online products through platforms such as eBay.
Step 3: Analysis of the options.
(A) Marketing: Incorrect. Marketing refers to promoting and advertising products rather than bidding for them.
(B) Auction: Correct. Auction involves customers bidding to determine the final selling price of a product.
(C) Bookshop: Incorrect. A bookshop is simply a store where books are sold at fixed prices.
(D) Booking: Incorrect. Booking refers to reserving services such as tickets or hotel rooms.
Step 4: Conclusion.
Since the process described involves customers offering bids to determine the price, the correct answer is Auction.
Final Answer: Auction.