Which of the following factors contribute to the decline in postgraduate education among females in Punjab?

1. High female unemployment reduces the perceived return on investment in higher education.
2. Declining quality of higher education institutions, leading to fewer skill-based job opportunities.
3. Lack of financial incentives and scholarships for female students in Punjab’s universities.
4. A significant decline in the number of colleges per capita in Punjab over the last decade.

Which of the above statements are correct?