One of the advantages of off-the-shelf software is that a. the software contains important features, thus eliminating the need for future modification and customization b. b. an organization does not have to pay for features that are not required and never used

One of the advantages of off-the-shelf software is that the initial cost is lower because the software firm can spread the development costs over many customers.

Explanation:

Two other choices are missing in the question all choices are:

a. the software contains important features, thus eliminating the need for future modification and customization  

b. an organization does not have to pay for features that are not required and never used

c. the software always matches current work processes and data standards.

d. the initial cost is lower because the software firm can spread the development costs over many customers.

Off-the-shelf software can be used by the customer without customization. It is ready made and not developed according to the customer's specifications. Therefore, these software are cheaper than the custom developed software and can easily found and purchased.

Since off-the self software can be used by multiple customers, its initial cost is lower.  

Example of off-the-shelf software are Salesforce CRM, Linux operating system, MySQL database, Microsoft Office, anti-virus programs.

its true for the one time