Thomas edison invented the
o a) cellular phone
o b) model t
oc) steam engine
o d) mimeograph

The mimeograph was invented by Thomas Edison.

Option D

Explanation:

The mimeograph was the copy machine which was used in the past times to duplicate the copies of an original content. It started as a small scale copy machine used in the class room and went out to be worked as the duplicating one on a business scale. It was in the month of August on 8th of the year of 1876, when it was given patent copy rights to Thomas Edison with auto-graphic printing and electric pen.

the answer is mass marketing.

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