Translation:The doctors told her that she has to take that medicine.
This lesson shows that Tabhair means "take" as well as "give"
The entry for the verb tabhair in the Foclóir Gaeilge Béarla is lengthy, but provides 3 meanings for tabhair:
tabhair, v.t. & i. (pres. tugann, p. thug, fut. tabharfaidh, vn. tabhairt, pp. tugtha).
1. Give. … Post, tuarastal, pinsean, a thabhairt, to give a job, a salary, a pension. ….
2. Take. (a) tabhair abhaile iad, take them home. …..
3. Bring. (a) tabhair anseo iad, bring them here. ….
Okay, I know there are a bunch of ways to express the idea of "have to" - and I tried a different one from the one given, but I'm not sure if they're marking it wrong because I have a different way, or because I made a mistake. Would this be correct? Dúirt na dochtúirí léi go gcaithfidh sí an leigheas sin a thabhairt.