B46 this black hose was wet during test drive, is it just condensation from ac line?

Test drove a vehicle im interested in buying, saw this was wet with i beieve water. It was humid that day, so thought it was condensation from AC, is that correct?

Test drove a vehicle im interested in buying, saw this was wet with i beieve water. It was humid that day, so thought it was condensation from AC, is that correct?