Which was developed specifically during California's Gold Rush?

A. cowboy boots

B. jeans

C. gold chains

D. pans

C. gold chains is the correct answer.

Explanation:

gold chains was developed specifically during California's Gold Rush.

The development of the gold chains during the California Gold Rush arguably an example of the most important events to form American history.

In the year 1848 James W. Marshall saw gold on his portion of a land at the Sutter's Mill in the Coloma. The discovery of gold immediately circulated.

The answer is the obvious choice which is c gold