单项选择题

Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 40 to 44. For each question or statement there are 4 choices marked A, B, C and D.
A friend of mine is a department manager at a large company. His secretary requested a 10% salary raise.
The problem was that 10% was a large raise compared to the 5% other employees had received. Was there a win-win (双赢) way out of this problem
As they looked at the possibilities, several ideas appeared. The company starts work at 8 am and closes at 5 pm. The manager learned that his secretary got caught in heavy traffic every evening on the way home. They agreed to have her work from 7:30 am to 4:30 pm. This saved her at least 20-25 minutes driving time, a benefit to her at little or no loss to the company.
They then studied her job in detail. Before long they jointly developed a new idea which gave her more responsibilities, and, at the same time, more interesting work.
Both parties benefitted from the changed arrangement of work. The raise itself was then discussed. A decision was made by agreeing on a 6% raise for three months and then an additional 2% later if the new responsibilities were properly performed. According to the passage, to achieve a win-win result the company agreed to ______.