Sistema Shyam TeleServices Ltd (SSTL) was sanctioned a loan of Rs 1,300 crore by State Bank of India. Which is the Russian conglomerate that holds 74% stake in SSTL and was appointed the corporate guarantor for the loan?

• A. JTSM Siestma
• B. Kosolapov Siestma
• C. MTS Siestma
• D. JFSC Sistema