(Choose 1 answer)
When did advertisements really exist in mass communication?
A. Before Gutenberg's invention of movable type in the mid-16th century
B. After Gutenberg's invention of movable type in the mid-16th century
C. Before Gutenberg's invention of movable type in the mid-15th century
D. After Gutenberg's invention of movable type in the mid-15th century
Exll
