Answer:
competence
Step-by-step explanation:
Credibility is defined as the ability of an endeavour or individual to inspire confidence by those interested in it.
Credibility has 3 aspects - caring, character, and competence.
Competence is the ability of an individual to demonstrate adequate knowledge, skill, strenght, or judgement with regards to a particular area of interest.
In the given instance where one is showing a thorough understanding of your survey results, organizing your content in a clear manner, and generally showing you are prepared for this presentation. He is demonstrating competence