$17.$ Which of the following would most likely be considered a breach of an agent's fiduciary duty to a customer?

$($Search Chapter $2)$

a$.$ neglecting to mention an important policy exclusion that specifically applied to an applicant

b$.$ explaining the negative aspects of a proposed policy

c$.$ comparing a policy to a competitor's and emphasizing the ways in which the agent's policy is better

d$.$ alerting the customer to problems that might cause the policy not to be underwritten