Answer: Sacajawea was an important factor in the expedition
Explanation:
Luis and Clark met Sacajawea when she was six months pregnant. Since she spoke English and two different Indian languages, she primarily served as a translator on the expedition, considering that people on their expedition mostly spoke only English. Sacajawea also served as a guide in the expedition itself. In addition to the above, she knew in situations of food shortage which plants are edible, and in this way, she contributed to Louis and Clark's expedition.