B,C,E
The Oregon Trail led pioneers to rich farmlands, where they settled.
The California Trail split off from the Oregon Trail at the Rocky Mountains.
The California Trail attracted mainly pioneers seeking gold, especially after 1848.
In order for me to answer this question I would need to know who the narrator is. Give more details.
Answer: I believe the answer would be C
Explanation: It would be C Because it makes the most sense.
The answer to this question is 1931.