O A. It isn't known why ECT works when it does work . B. Side effects may include memory loss that lasts for years . O C. Disorientation and confusion always accompany ECT therapy . O Depression doesn't return after ECT treatments have been concluded .

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

false

hope this : d