Read the passage below.

In the 1920s, during a period known as the Jazz Age, jazz music became popular. Another feature of this period was a dance known as the Charleston, which became popular among the younger crowds.

What is the purpose of the continuation signal word “another”?
to show that jazz music, but not the dance known as the Charleston, was popular during the Jazz Age
to show that the Charleston was popular during the Jazz Age, but only when accompanied by jazz music
to show that both jazz music and the Charleston were popular during the Jazz Age
to show that the Charleston and jazz music were only enjoyed by younger crowds during the Jazz Age