Translation:The doctor talks to the lady about her diet.
She says kost, as a broom, while she actully should say kost, as a diet.
Correct sentence would be: Lægen taler med kvinden om hendes diæt. Kost could be allright, but Duolingo pronounce as broom. In that context you would never use the word Damen = the lady, unless it is sarcastic.