For this one I would say C.) Work Breakdown Structure
Not sure in what environment your asking for, but in C programming, %d is an integer (basically a number), %c is a character, that is a single alphanumeric character, where as %s is a series of alphanumeric characters, in programming %s is actually just an array of characters (so multiple %c), but don't worry about that to much.
Examples in c.
int number = 1;
char character = "c"; (numbers (integers) can be characters)
char string[5] = "abcd"; ([5] implies 5 characters, here there are 4, that is because an invisible character exists known as a "null terminator" (\0).
The feature that Ryan should take advantage is Layout, which is available in his presentation, to insert the content he wants, be it a graph, picture, paragraph, bullet points, video, etc. Assuming this is a Microsoft PowerPoint, Ryan can right-click the slide he wants to put the content in, where an option window would appear. He should click on the ‘Layout’ option and several types of layouts available for him to put content on would appear: Title & Content, Two Content, Comparison, and Content with Caption.
Answer:
this is more up to you on what you think you are good at and what you need to develop in.