Final answer:
To accomplish showing three options to the user depending on conditions, you should write a Recommendation rule.
Step-by-step explanation:
To accomplish showing a user three of the five options depending on conditions, you should write a Recommendation rule. A Recommendation rule allows you to suggest or recommend certain options based on specific conditions. In this case, you can create a rule that checks the conditions and suggests three options to the user. This way, the configurator will only display those recommended options.