$5:30$-$45$ minutes=$4:45$ 
A bus was supposed to arrive at Think Station at $$5:30$$ PM, but it arrived $45$ minutes earlier by changing another route because of a traffic accident. When did the bus reach Think Station? 

* $5:00$ PM 
* $4:30$ PM 
* $4:00$ PM 
* $5:30$ PM 
* $4:45$ PM 