Which of the following was one of the first commercially used photographic processes?
a) pinhole
b) carbon print
c) kodachrome
d) daguerreotype

d)

Explanation:

Inventor of this process is Louis Daguerre and the daguerreotype is used as the first successful process of photography in commercials.

It is a referring image that is high, detailed and unique, and that image is on a copper plate that is in silver color and the founders of the copper plate were Daguerre and Niépce(pinhole inventor).

The process of taking pictures with the first daguerreotypes was taking between 60 and 90 minutes and with the new technology, this process now can last only a few seconds.