Why is the first option the answer, please explain to me step by step

Consider the diagram below of two hops, and each link having its own transmission rate. We can assume that nodal processing delays and propagation delays are negligible. What if Rc=1Mbps,Rs=2Mbps, and that all packets are 10K bits long. Using this information, select the corret response regarding queuing delays, with respect to the 2nd packet being sent out. The 2 nd packet will not experience any queuing delay. The 2nd packet will have a queing delay of 0.005 seconds at the router. The 2nd packet will have a queuing delay of 0.010 seconds at the router. There is not enough information to make a statement regarding the queuing delay of the 2nd packet