Final answer:
True, using active verbs and parallel grammatical structures enhances clarity, directness, and memorability in presentation aids, making them simpler for audiences to grasp and recall.
Step-by-step explanation:
The statement that using the active verb form and parallel grammatical structure keeps the presentation aid simple is true. Active verbs clearly convey who is doing the action, making statements more direct and dynamic. Additionally, employing parallel grammatical structures within the presentation enhances clarity and comprehension, as it provides a pattern that reinforces the message and makes the content more memorable. This is because parallelism helps in creating symmetry and balance within the text, facilitating easier recall and a more aesthetically pleasing delivery. For instance, when bullet points in a presentation follow a consistent grammatical form, the audience can follow along more easily and is more likely to retain the information.