Final answer:
The three customer support functions performed by a customer support/service organization are technical assistance, warranty support, and troubleshooting, ensuring customers receive help with product-related issues. The correct option is B.
Step-by-step explanation:
Three customer support functions that a customer support/service organization performs are technical assistance, warranty support, and troubleshooting. These functions are vital as they ensure that customers receive help in resolving any issues related to the products or services they have purchased.
Technical assistance can include helping customers with using a product properly, warranty support typically involves managing claims under the product's warranty terms, and troubleshooting can involve diagnosing and solving specific problems the customer encounters.