Digit Electronics places an ad announcing a sale of its inventory at public auction. At the auction, Digit’s auctioneer points to a new seventy-five-inch 8K TV and asks, “What am I bid for this item?” Which of the following is true?

a. The first bid is an acceptance if no other bid is received.

b. Each bid is an acceptance if no higher bid is received.

c. Each bid is an offer that may be accepted or rejected.

d. Each bid is an offer that must be accepted if no higher bid is received.