Joke of the Day - Breast Milk

A question had appeared in a student's medical examination which read: "List four benefits of breast milk." 

A student began to answer the question: 

1. No need to bottle it. 
2. Cats can't steal it.
3. Available whenever necessary. 

But the fourth point eluded him. And just when the exam was about to end, the fourth point flashed before his mind. So he completed the answer by writing: 

4. Available in attractive containers.