Which Article of the constitution deals with the claims of the scheduled castes and the scheduled tribes to services and posts?

A. 89^th B. 90^th C. 95^th D. 97^th

A. Art. 342 B. Art. 343 C. Art. 344 D. Art. 345

A. October, 2005 B. October, 2006 C. October, 2007 D. October, 2008

A. Art. 164 B. Art. 165 C. Art. 166 D. Art. 167