How does the author’s use of dialogue develop characterization and indirect characterization? in "Ruthless"

How can a musical work be an argument

What is the best way to manage oil transport on waterways? a. prevent oil spills and regulate the amount of oil that can be shipped at one time. b. use a skimmer, containment boom or chemical dispersant to clean up spilled oil. c. burn off oil spills from the water's surface when they occur.

How is dr. lanyon characterized in the excerpt? as friendly as arrogant as wise as mournful