From the 1830s on, pioneers hoping to settle on america’s western coast avoided the cumberland gap. made their way along the oregon trail. followed the trail blazed by zebulon pike. traveled along the mississippi river.

B) made their way along the Oregon Trail

Explanation:

you can talk about what you learned about them. and you can talk about what happened on you're journeys with them. and then you can put all of the thing you learned about them in you're diary.