review this: Explanation The question asks for the probability that the risk event occurs during the fourth month only. You are told that: The risk has a 20% chance of occurring in any given month. Each month is an independent trial. The total project duration (five months) does not affect the probability for a single specific month. Therefore, the probability that the risk occurs in month 4 is simply the monthly probability: ???? 20% Why the other options are incorrect A. Less than 1% No compounding or multimonth calculation is involved. C. 60% This would imply cumulative probability across several months, which is not what the question asks. D. 80% Incorrect interpretation; nothing increases the probability beyond the stated 20%