From the list given, identify the features that belong to flat-belt drive and V-belt drive.
I. It has a trapezoidal cross-section.
II. The belt is hinged
III. It is used for long-distance power transmission
IV. It is comparatively expensive
1.
Flat-belt drive - II and III
V-belt drive - I and IV
2.
Flat-belt drive - I and III
V-belt drive - II and IV
3.
Flat-belt drive - II and IV
V-belt drive - I and III
4.
Flat-belt drive - I and IV
V-belt drive - II and III