2+22+222+2222+......................का n पदो तक योग है

• A. 2/9{10/9(10n-1)-n}
• B. 2/9{10/9(10n-1)+n}
• C. 2/9{10/9(10n-1)-n2}
• D. 2/9{10/9(10n-1)+n2}