If she just wrote to Salman Khan along with classmates, i am sure he would be happy to cover the missing areas too. It's just that he chooses areas to cover ba

If she just wrote to Salman Khan along with classmates, i am sure he would be happy to cover the missing areas too. It's just that he chooses areas to cover based on feedback from students/users - and if enough students approach him, the subject gets magically covered.