Think of it as "obtains." The most common translation of that is "take," but it can be translated other ways. For example, in the sentence "we take the newspaper" -- which is old-fashioned English for "we have a subscription" -- we might now say "we get the newspaper." This is the same thing.
Other examples given in my Oxford Beginner's Italian Dictionary:
vai a prendere le posate = go and get the cutlery
prendere la palla = to catch the ball
prendi un caffè? = do you want to have a coffee? (used for food & drink)
Meanwhile, I agree it's tough to figure out what Duolingo will accept, however.