The correct options are
B Equality of opportunity- Article 16
C Prohibition of discrimination- Article 15
The articles 14 to 18 of the Indian Constitution pertains to the right to equality. Article 14 pertains to Equality before law. Article 15 deals with the Prohibition of discrimination. Article 16 pertains to Equality of Opportunity. Article 17 is related to Abolition of Untouchability. Finally, Article 18 deals with Abolition of Titles.