Click the Exhibit button. Which type of multiplexer is shown in the exhibit?()<br /> <img src="https://nimg.ppkao.com/2018-08/yuanhao/2018080114095150541.jpg?sign=b9906982f2c9437fb4b91f462d71d431&t=62d09dff" />
A、Thin Film filter
B、Fiber Bragg Grating
C、Arrayed Wave Guide
D、Erbium fiber amplifier