The answer for your question would be D
Answer: gehe
Explanation: Ich gehe durch den Wald wandere = I go hiking through the forest
(1) Group "Der/Ein"
Apfel, Schokoriegel, CD-Player, Walkman, Kuchen, Apfelsaft
(2) Group "Das/Ein"
Fahrrad, Mineralwasser, Brötchen, Computerspiel, Comicheft, Pausenbrot
(3) Group "Die/Eine"
Banane, Limonade, CD, Birne, Kamera, Orange,