In Deciding Whether the Salient Features of the Case Are

In deciding whether the salient features of the case are consistent with the existence of a duty of care, will the court take into account (i) the need for coherency in the law, (ii) the possibility of conflicting duties of care, (iii) the possibility of indeterminate liability, or (iv) the need for people to take responsibility for each other's actions?

A) i, ii, iii.
B) i, iii, iv.
C) ii, iii, iv.
D) i, ii, iii, iv.