An issue that came with the western expansion was

Slavery and Many travelers lost their way.

Explanation:

The target of The western Expansion was the ex-Louisiana territory that's previously owned by France before being bought by United States.

Many states fight over whether the new western territory should be considered as slaves states (where slavery is allowed) or free states (where slavery is illegal.

On top of that, the navigation technology among settlers were still somewhat primitive. So, when they embarked on a journey from Eastern States to Western states, many of them actually lost their way and ended up settling in Midwest or Southern part of United States.

the actual answers are a, b, and d.

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

i hope this