Answer:
The first movie theater opened in 1902 in Los Angeles; because admission cost five cents, it was called a nickelodeon.
Step-by-step explanation:
This is the statement that best revises the text in parentheses. In this sentence, the semicolon is employed in order to separate two fully developed ideas. Moreover, the second sentence contains a dependent clause, which is appropriately marked through the use of a comma. This makes the sentence clear and easy to read.