This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
80 years old female after fall developed an inability to walk with external rotation deformity, on examination SLR is not possible and broadening of the GT and lateral border of foot touching the bed. The most probable diagnosis is - 
Select and explain. 
A. # Neck femur, B. # Intertrochanteric femur, C. # Subtrochanteric femur, D. # Greater trochanter
B: # Intertrochanteric femur
Answer: B: # Intertrochanteric femur 
Explanation: It has been explained that external rotation occurs with both neck femur fracture and IT fracture.
However, in this question, one important information has been provided :- Broadening of trochanter.
Broadening of trochanter occurs in IT fracture if the fracture causes split in GT.
In femoral neck fracture trochanters are normal.