Which geographic feature presented an obstacle
to Simón Bolívar’s forces?
(1) Sahara Desert (3) Great Rift Valley
(2) Andes Mountains (4) Strait of Malacca
"(4) Strait of Malacca" is the best option in terms of a geographic feature that presented an obstacle to Simón Bolívar’s forces, but it should be noted there were others.