Knock knock
Who’s there?
Your
Your who?
Your mom-
The last letter of my dads name is O
Uh, im confused on how to help
The answer C Different Trains
<span>Johannes Gensfleisch zur Laden zum Gutenberg was a German blacksmith, goldsmith, printer, and publisher who introduced printing to Europe. His introduction of mechanical movable type printing to Europe started the Printing Revolution and is widely regarded as the most important invention of the second millennium, the seminal event which ushered in the modern period of human history; but his the first most famously achieved is the printing press that Johannes Gensfleish zur Laden zum made in the workshop.</span>
I think that the anwser is C hope this helps
