Answer:
may be estopped from denying that Glynis had authority.
Explanation:
In this case, Glynis apparently had the authority to collect Esteban's money, since his conduct made other people believe that.
Apparent authority is defined as a situation where a reasonable person (Floyd) will believe that the agent (Glynis) has authority to act on behalf of the principal (Esteban). If such a situation exists, then the principal is bound by the agent's actions.