Answer:
Using multimedia and visual displays can be extremely helpful when dealing with complex topics.
Step-by-step explanation:
When we're dealing with complex topics, multimedia and visual displays can help us understand them with more ease. For example, if the topic in question includes statistics, charts and graphs would help us follow and understand this type of information with no problem.
When it comes to more basic (simpler) topics, these tools are not as necessary.
Whether topics are older or more recent is irrelevant to whether multimedia and visual displays are necessary.
When it comes to multiple topics, it's better to deal with topics one by one. Either way, whether multimedia and visual displays are necessary or not will depend on the complexity of the topics.