Please help us help you and fill where relevant:
Your LimeSurvey version: Version 6.4.6+240212 
Own server or LimeSurvey hosting: University of Urbino server
Survey theme/template: Vanilla
==================
Hi everyone! I'm creating a survey on LimeSurvey for a professor at my university and he asks me to make some items appear or hide on a question based on what items have been selected in the previous one. More specifically, I have a question in which respondents tick all boxes corresponding to the means of transportation they use to get to the university. Then, in the following question, we are asking them what mean they use for the first part. In this second question, which formally has the same item of the previous one, only those means of transportation that have been selected in the previous question should appear.
Hoping that the explanation is clear, is there a way I can do this with my version of Lime?
Thanks in advance and have a great day!

You can use www.limesurvey.org/manual/Question_type_...ilter_(array_filter)

It's done for this.

More (wrong) chatGTP crap.

There is no answer relevance/conditions for single-choice answers. As Denis says, array filter must be used.