This would be the introductory of your presentation.
Answer:
a. She includes them at the same time as presenting complex charts to inject serious note.
Explanation:
In the first sentence it is stated that "Zikala-Sa often uses jokes to start her presentations or to keep her audience engaged while presenting figures." Then the figures may be related with charts, in this way she can present complex charts and associated them with a feeling so that they retain the information in an easier way and don't get bored, so in this way people are attentive and get the information.
Radical Republicans in Congress
