Which of the following best describes implicit bias?

Question $4$ options:

a$)$

It is a tendency to make associations that the holder of the bias is not aware of$.$

b$)$

It is the tendency to remain silent when one becomes aware of a procedural barrier in the workplace.

c$)$

It is the tendency to only look for evidence that supports our beliefs.

d$)$

It is the tendency to remain silent when one becomes aware of a cognitive bias.