Which one of the following organizations is not merged into a new umbrella scheme 'Rashtriya Yuva Sashaktikaran Karyakram (RYSK)'?

• A. Nehru Yuva Kendra Sangathan (NYKS)
• B. Youth Hostels (YH)
• C. National Service Scheme (NSS)
• D. National Young Leaders Programme (NYLP)