【单选题】
Network topology exhibit：<br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073108265487474.jpg?sign=e2d0b150d1ab8c5237cb0452faacd5df&t=62d0c87a" /><br />  <br /> Interface VLAN 101 exhibit：<br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073108265880392.jpg?sign=4fdfd49a4d76aa9c999c42f2a1a2beb3&t=62d0c87a" /><br />  <br /> Interface VLAN 102 exhibit： <br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073108271361710.jpg?sign=89e663ae1ef13542c47e9f277d8b2d4d&t=62d0c87a" /><br /> Interface VLAN 104 exhibit： <br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073108272093168.jpg?sign=3652cfec70f5f2494e6aa577f31e51ad&t=62d0c87a" /><br /> <br /> Interface VLAN 105 exhibit： <br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/201807310827252678.jpg?sign=96593221fe2a7487b4bc3f441131e7f5&t=62d0c87a" /><br /> You work as a network
A、On 1， disable preempt
B、On 2， decrease the priority value to a value less than 150
C、On 1， increase the decrement value in the track command to a value greater than 6
D、On 1， disable track command.
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