Which of the Following Anti- Competitive Practices Are Forms of Oligopolistic

Which of the following anti- competitive practices are forms of oligopolistic collusion (restrictive practices) ?
(i) Collusive tendering
(ii) Price discrimination
(iii) Market- sharing agreements
(iv) Rental- only contracts
(v) Tie- in sales
(vi) Vertical price squeezing
(vii) Selective distribution
(viii) Price rings

A) (i) , (ii) , (iii) , (v) and (viii)
B) (i) , (ii) , (iii) and (v)
C) (iii) , (vi) and (vii)
D) (ii) , (iv) and (v)
E) (i) , (iii) and (viii)