Triangles

In an isosceles triangle, one angle is 70°. The other two angles are of
(i) 55° and 55° (ii) 70° and 40° (iii) any measure

In the given option(s) which of the above statement(s) are true?
(a) (i) only (b) (ii) only (c) (iii) only (d) (i) and (ii)