Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make lemon mousse [title] Crack 3 whole eggs into a heat-proof bowl. [title] Add the yolks only of 3 separated eggs. [step] Place the egg whites into a separate bowl and refrigerate.

Ending1: [title] Mix in 1 cup (225 g) of sugar , 2 tsp. [step] ( 10ml) of grated lemon zest , 1/2 cup (4 oz. Ending2: [title] Peel, peel and slice 4 medium lemons, very large, and place them into the same bowl. [step] Stir well and stir once a time. Ending3: [title] Mix in 1 to 4 tablespoons (29.6 to 44.6 ml) of sugar and 5 cup (56.4 ml) of water. [step] This will cool down the inside of the liquid [title] Whisk in ice and pour over the cooled mixture except for the 3 eggs. Ending4: [title] Combine the sugar and flour in the egg whites. [step] Put this mixture into a microwave-safe bowl and set the microwave to a low setting.

Answer format: ending1/ending2/ending3/ending4