Which of the Following Scenarios Demonstrates System Efficiency

Which of the following scenarios demonstrates system efficiency?

A) Barker's new information system allowed the company to reach its monthly targets.
B) Barker's was able to easily reach its sales goals through the use of its information system.
C) Barker's new information system allowed the company to set achievable targets.
D) Barker's new information system helped employees to achieve their individual goals alongside the company's goals.
E) The new information system at Barker's helped employees work faster,with less effort.