An Insurance Agent Has Appointments with Four Prospective Clients Tomorrow

An insurance agent has appointments with four prospective clients tomorrow. From past experience
The agent knows that the probability of making a sale on any appointment is 1 out of 5. Using the
Rules of probability, what is the likelihood that the agent will sell a policy to at least 3 of the 4
Prospective clients?

A) 0.0016
B) 0.4096
C) 0.0272
D) 0.0256