What is the difference between primary and support activities?

Question $2$ options:

Primary activities deal directly with the creation of a good or service and all the necessary activities associated with such, including transferring the good or service to a customer, marketing, sales, and service $($if applicable$).$ Support activities are unnecessary and create no additional value to a firm or customer.

Primary activities deal directly with the creation of a good or service and all the necessary activities associated with such, including transferring the good or service to a customer, marketing, sales, and service $($if applicable$).$ Support activities add value by either working in conjunction with primary activities and other support activities or by creating additional value by themselves.

Primary activities add value by either working in conjunction with primary activities and support activities or by creating additional value by themselves. Support activities deal directly with the creation of a good or service and all the necessary activities associated with such, including transferring the good or service to a customer, marketing, sales, and service $($if applicable$).$