Read the following context and choose the best option to answer the question.
Context: Things I have learned over the past few days : 1 . Green tea can not be kept until the afternoon because bubbles will form and it will have the weirdest taste after that . ( But asking people to drink it and watching their faces is always fun wtf ) 2 . Haagen Dazs has ice - cream mooncakes !
Question: Why ca n't green tea be kept ?
Options: 
- None of the above choices .
 - Because it wo n't be appealing to the palate .
 - Because people drink it before then .
 - Because it will have a great taste .


Because it wo n't be appealing to the palate .