Question

what issue can complicate the work of space lawyers?
it is still somewhat unclear where airspace ends and outer space begins.
to date, there are no international laws governing space exploration.
space lawyers are not required to obtain jd degrees the way other lawyers are.
the amount of 1pb is not enough to hold all of the information they need, and it is the largest measurement of data storage we have

Explanation:

The unclear demarcation between airspace and outer - space creates legal ambiguities, complicating the work of space lawyers. There are international laws governing space exploration, space lawyers do need JD degrees like other lawyers, and data - storage amount is not related to their work complications.

Answer:

It is still somewhat unclear where airspace ends and outer space begins.