The given sentence "Ich esse gern das" is incomplete. It needs an object to make sense, for example "Ich esse gern das Hähnchen," which means "I like to eat the chicken."
So, the most appropriate answer will depend on what the speaker likes to eat. Assuming we're talking about the speaker's food preference, the correct answer could be any of the options given, depending on their personal taste:
A. Hähnchen - chicken
B. Fisch - fish
C. Meeresfrüchte - seafood
D. Schinken - ham
Therefore, a complete sentence with an appropriate object can help us determine the correct answer.