The correct answer is option 1: 1-3-1-4-2.

In option 1, the cities and rivers are matched correctly.

a. Bangkok is matched with river 1, which is Hwangpu. The Hwangpu River flows through Shanghai and not Bangkok, so this option cannot be correct.

b. Shanghai is matched with river 3, which is Chaophraya. The Chaophraya River flows through Bangkok and not Shanghai, so this option cannot be correct.

c. Dresden is matched with river 1, which is Hwangpu. The Hwangpu River flows through Shanghai and not Dresden, so this option cannot be correct.

d. Montreal is matched with river 4, which is Elbe. The Elbe River does not flow through Montreal, so this option cannot be correct.

e. None of the cities are matched correctly with the rivers in this option.

Therefore, the correct answer is option 1: 1-3-1-4-2.