Can you help me Please

1. Which of the following are considered advantages of a good actuals costs estimate (Select two)?

a) Obtaining Access to actual cost can be difficult

b) Actual Cost data is typically the most accurate cost engineering method when the data is available

c) this method cannot be used until the program has generated enough data to see performance and the production process stabilize

e) If we are part of the program office, we already know about the program history so we do not have to spend as much time researching or finding data