Answer:
High fashion adoption starts from upper class, and then it moves to the lower class. However,
B. Leather jackets as fashion were first found on the streets.
And hence, this answer. And its because the it supports the Reverse adoption theory. Its important to understand what is Reverse adoption theory. In general, it is the rich community that tests the new trends first. However, in case of the leather jackets, the first one were the lower class people. And that is what is the Reverse adoption theory.
Step-by-step explanation:
The above few lines are self explanatory.