Answer:
A. providing products at the right time.
Explanation:
Naomi is concerned about the seasonality of Christmas products. She knows that Christmas products not sold in Christmas season are unlikely to be sold in other time of the year. She also knows that customers tend to spend more money in the Christmas season, so there is a high expectation about relative higher sales. The only way Naomy could take advantage of the season is having stock available at the right time when customers desire Christmas products and are willing to pay a relatively higher amount of money. In this case, having products at the right time is the biggest Naomi's concern.