What defines an Item group in NetSuite?

An Item group in NetSuite is defined as a collection of items sold as a single product. This means that when you create an Item group, you are essentially packaging several individual items together to be sold or managed under one umbrella. This is particularly useful for businesses that offer products that are typically sold together, as it streamlines the selling process and makes inventory management easier.

By grouping items together, you can create a single, cohesive product offering that customers can purchase. This approach not only simplifies the sales process but also allows for easier tracking of sales data and inventory levels for the items included in the group. When an Item group is sold, it can automatically include the inventory of each individual item that makes up the group, ensuring that stock levels are managed more efficiently.

The other choices relate to different functionalities in NetSuite, but they do not represent the essence of what an Item group is. The concept of item bundling is different from price summaries or inventory adjustment tools, making option A the clear and definitive choice to describe an Item group in NetSuite.