When the Automobile Replaced Horse-Drawn Carriages as the Principal Means

Multiple Choice

When the automobile replaced horse-drawn carriages as the principal means of transportation,firms producing horse-drawn carriages went bankrupt and permanently laid off all their workers,thereby increasing
I.seasonal unemployment.
Ii.structural unemployment.
Iii.cyclical unemployment.

A) i only
B) ii only
C) i and iii
D) i and ii
E) ii and iii