Please help with this practice question. This is the full question.

Which of the following is an example of a loss leaders strategy? 0 Casinos rigging the odds of their slot machines so that customers lose money on average. 0 Target selling grocery staples at below cost to bring customers into the store to purchase items with higher markups. O The rm with the leading market share making negative economic profit. 0 Amazon dropping the price on its products below cost to drive competitors out of the market. 0 A new firm taking economic losses early on so that they can refine their product and enjoy positive economics prots in the future