What do you understand by: Rig the accommodation ladder in combination with the pilot ladder?

Question

Rig the accommodation ladder in combination with the pilot ladder means: lower the gangway and rig the pilot ladder forward of the accommodation

Rig the accommodation ladder in combination with the pilot ladder means: lower the gangway

Rig the accommodation ladder in combination with the pilot ladder means: lower the accommodation ladder and rig the pilot ladder right next to it

Rig the accommodation ladder in combination with the pilot ladder means: lower the gangway and rig the pilot ladder from the gangway

I don't know

Answer 1

Rig the accommodation ladder in combination with the pilot ladder means: lower the accommodation ladder and rig the pilot ladder right next to it.