The correct answer is option a) disingenuous.
The charlatans seemingly frank and open demeanor was actually a disingenuous means of enlisting his patients confidence.
The right answer is option A, which refers to not being open or truthful, usually by seeming as though one understands less about something than one actually does.
Therefore, the following phrase is provided to help him win his patient's trust. The con artists appear to be honest, while the extrovert genuinely wanted to gain the trust of his clients.
Nobody wants to make their patients weak since other solutions like Debilitating include making someone exceedingly weak.
Option C: Cathartic refers to offering psychological comfort via the outward expression of intense emotions. Diminutive implies exceedingly little.
Prosaic methods are boring or usual.
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