The Sikkim government has schemes specifically aimed at the welfare of STs, focusing on:

The correct answer is: d) All of the above

The Sikkim government has schemes specifically aimed at the welfare of STs, focusing on education and scholarships, healthcare, and economic development.

• Education and scholarships: The Sikkim government provides scholarships to ST students to help them pursue higher education. The government also runs a number of schools and colleges that are specifically for ST students.
• Healthcare: The Sikkim government provides free healthcare to ST patients. The government also runs a number of hospitals and clinics that are specifically for ST patients.
• Economic development: The Sikkim government provides financial assistance to ST entrepreneurs to help them start and run businesses. The government also runs a number of programs to promote economic development in ST areas.

These schemes are aimed at improving the lives of STs and helping them to achieve their full potential.