Efrida and Frazer who live 15 miles apart, meet at a restaurant that is directly north of Efrida's home and directly east of Frazer's home. If the restaurant is two miles closer to Efrida's home, than to Frazer's home, how many miles is the restaurant from Frazer's home? Choose the most appropriate option: A) 6 B) 7 C) 8 D) 10 E) 13

Rationale: it ' s a simple geometry problem . look at the diagram below : answer : e .
Answer: E