Giorgos, a Sales Manager, Is Required to Present the Annual

Giorgos, a sales manager, is required to present the annual sales report for his product at next month's senior management meeting. Before creating the visual for the report, he is making sure that no information is missing from key locations or demographic areas. Which guideline for creating effective visuals and data displays is Giorgos following in this scenario?

A) Follow conventions.
B) Determine the story you want to tell.
C) Be ethical about citing sources.
D) Check the quality of the data.
E) Choose the right visual for the story.