Final answer:
Daniel is creating a program for National Computing, Inc., which is designed to collect data from both internal and external sources to inform marketing decisions for the firm and its clients.
Step-by-step explanation:
Daniel's task at National Computing, Inc. is to develop a program that will not only collect data from a business's internal sources, such as sales figures, product and marketing costs, inventory levels, and sales force activities, but also include external data from and about suppliers, intermediaries, and customers. The primary purpose of this program is to gather and provide comprehensive data that will inform marketing decisions for the firm and its clients. Therefore, the correct answer is that the program is designed to collect data from internal and external sources (Option 3), which will in turn be used to make marketing decisions for clients (Option 4).