If an Organisation or Subcontractor Has Performed Similar Projects in the Past

If an organisation or subcontractor has performed similar projects in the past and has kept records of how long specific activities actually took, these historical data

A) can be used as a guide in estimating the durations of similar activities for future projects.
B) have no value for the current project.
C) should be stored in files.
D) should be shared with the customer after the contract is signed to show that the contractor can complete the project.