Triangles

It is given that ΔABC ∠DFE, ∠A =30°, ∠C = 50°, AB = 5 cm, AC = 8 cm and DF= 7.5 cm. Then, the following is true:
(A) DE = 12 cm, ∠F = 50° (B) DE = 12 cm, ∠F = 100°
(C) EF = 12 cm, ∠D = 100° (D) EF = 12 cm, ∠D = 30°