Answer: The type of problem-and-solution organization that the paragraph uses is problem/solution.
Explanation: There are several ways of organizing information in a text. One of them is the problem-and-solution organizational pattern; however, there are also many subtypes of organization within this pattern. In the case of the passage provided, the type of problem-and-solution organization that the paragraph uses is problem/solution since it presents one problem ("The old kayaks need to be replaced before the tourist season begins") and one solution ("the best option is to order new kayaks online and sell the old ones to employees"). This passage does not make reference to a cause. Moreover, it does not present more than one solution nor a recommendation. Therefore, the correct answer is the second one: problem/solution.
