Which among the following relation holds true if AD, BE and DF are the altitudes of the triangle?

Which among the following relation holds true if AD, BE and DF are th

1.	Which among the following relation holds true if AD, BE and DF are the altitudes of the triangle?
A.	AD + BE + CF > AB + BC + AC
B.	AD + BE + CF = AB + BC + AC
C.	AD + BE + CF < AB + BC + AC
D.	AD + BE + CF > 2(AB + BC + AC)
Answer» D. AD + BE + CF > 2(AB + BC + AC)