Which of the following storage and retrieval methods would be well suited to your processing requirements if you only need to retrieve records one at a time and there is no fixed pattern to the requests for data and records?

The correct answer is: D. indexed direct

Indexed direct storage is a method of storing data that allows for both sequential and direct access. This makes it well-suited for applications where you need to retrieve records one at a time, but there is no fixed pattern to the requests for data and records.

Sequential storage is a method of storing data in a linear fashion, one record after the other. This makes it efficient for applications where you need to retrieve records in order, but it is not well-suited for applications where you need to retrieve records randomly.

Direct storage is a method of storing data in a non-linear fashion, with each record having its own unique address. This makes it efficient for applications where you need to retrieve records randomly, but it is not well-suited for applications where you need to retrieve records in order.

Indexed storage is a method of storing data that uses an index to keep track of the location of each record. This makes it efficient for both sequential and direct access.

I hope this helps! Let me know if you have any other questions.