Refer to the exhibit.After a RIP route is marked invalid on Router_1, how much time will elapse before that route is removed from the routing table?()<br /> <img src="https://nimg.ppkao.com/2018-07/zhoulian/2018072315210946254.jpg?sign=a2bb5aade45900e4c5fd7978b4c0faf5&t=62d0545b" />
A、30 seconds
B、60 seconds
C、90 seconds
D、180 seconds
E、240 seconds