单项选择题

Questions 162-164 refer to the following letter.
LA Music Academy
370 South Fair Oaks Ave, Pasadena, California 91105
Phone: (626) 568-8150
September 1
Dear colleagues,
I am writing to let you know that I have accepted a position as a music director of the Oregon Symphony and will be resigning from my position as a senior lecturer here on September 22. The decision to leave LA Music Academy has been an extremely difficult one, as I have enjoyed teaching at our school tremendously.
However, I do feel that it is time for me to move on to the next stage of my musical career. I believe the position at Oregon provides an opportunity for such growth.
During my seven years at this academy, I have had the privilege of working with many fine musicians such as yourselves. I am very grateful for your hard work and encouragement and wish you continued success.
Best wishes,
Phillip Janssen
What does Mr. Janssen say about the position at the Oregon Symphony

A. It requires university degree.
B. It is not yet been filled.
C. It will advance his career.
D. It requires teaching experience.