For the most effective presentation, it's best to a. watch the projection screen to ensure there are no errors in your presentation.
b. practice to the point where speaker notes aren't necessary.
c. read the slide material to the audience verbatim to ensure they understand your message clearly.
d. rely heavily on the speaker notes to ensure you cover each point.

The answer to this question is option A and option C.

Explanation:

In the rules for effective presentation can be given as:

1) All the slides contain the shortest titles because the shortest title does not show it is wrong.

2) In the slides, we do not use small fonts and useless graphics like logos, grids, affiliations, etc.

3) For an effective presentation, we do not read the presentation straight from the slides. we must explain the thing that is written on the slide. So the option a and option c is correct.