Answer:
Step-by-step explanation:
a). AB and BC → Both the segments are perpendicular so intersecting at the point B.
b). AE and BF → Both the segments are parallel
c). EF and ED → skew (Since both the segments are neither parallel nor they intersect each other)
d). Plane ABC and plane ABF → Both the planes intersect at AB
e). Plane AED and plane BFC → Both the planes are parallel
