Find the shortest route from Node 1 to Node 6. (The Transhipment Nodes are going in one direction only)

From Node	To Node	Distance
1	2	5
1	3	6
2	3	4
2	4	7
2	5	7
3	4	5
3	5	3
4	6	10
5	6	11

Draw the shortest-route model and visually determine the distance of the shortest route.

Chose the correct answer

Group of answer choices

Node 1-2-4-6 = 22

Node 1-2-5-6 = 18

Node 1-2-4-6 = 21

Node 1-3-5-6 = 20