UML about packages

Ok, I'm preparing an exam and I need the answer to this question, that I couldn't find in the book. Hope that you can help me.

What is needed for the A package to access the B package? (1 of the 2 answers is the right one)

1. A will import B and B will export the elements establishing the visibilities that fit better
2. We just need an <<import>> from A to B

Thank you very much