Identify and describe three things that affect customer lifetime value

What will be an ideal response?

Customer lifetime value is affected by revenue and by the costs of customer acquisition, retention, and cross-selling. Acquisition depends on the number of prospects, the acquisition probability of a prospect, and acquisition spending per prospect.
Retention is influenced by the retention rate and retention spending level.
Add-on spending is a function of the efficiency of add-on selling, the number of add-on selling offers given to existing customers, and the response rate to new offers.