It happens , but I do n't want to continue to let it happen . As Scarlett puts it , " Tomorrow is another day . " At the same time we must not forget that there is not an infinite number of tomorrows for any of us .

Available choices: 1. Scarlett is a vengeful person .. 2. Scarlett is a negative person .. 3. Scarlett is a limited person .. 4. Scarlett is optimistic ..
Answer the following question: How would one describe Scarlett 's mindset ?
4.