Answer:
C. autocracy
Explanation:
The most common form of government from ancient times to the early part of the 20th century was monarchy, or rule by a hereditary king or queen. making autocracy the answer because it is defined as a system of government by one person with absolute power.
19: The Spanish conquered the Aztec lands.
Industrial revolution or the technical revolution
D is the answer, he was a delagate to help draft the United States Declaration of Independence