Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make a fast and easy microwave chocolate cake [title] Add flour, sugar, and cocoa to the mug and mix. [title] Stir in the egg. [step] The batter may be pasty at this point.

Ending1: [title] Slowly stir in the milk and oil. [step] After incorporated, add in the chocolate chips and vanilla. Ending2: Use a rubber spatula to gently pour the batter into the mug, about a quarter inch at a time, to ensure that everything blends. [title] Pour your cake mix into the mug. Ending3: [title] Pour in the milk, flour, and cocoa. [step] Do not over stir! [title] Microwave about 45 seconds and then pour in the milk, cocoa, and sugar. Ending4: [title] Pour the batter in the microwave and leave it at 70% power for about two minutes. [title] Run the microwave for about five minutes.

Answer format: ending1/ending2/ending3/ending4