Answer: D. Shopping with a delivery service to bring their food home
Explanation:
The key word to note in the question is that they want to save money. One of the best ways to save money is buy booking or buying online and have your items delivered to your door step. This saves you time, is comfortable and saves you the cost of fueling to go shopping, especially having two rides.
The best option for Declan's family is to shop with a delivery service to bring their food home. This makes it easier and saves cost.