Which answer matches this clue: the motor scooter designed by Corradino D'Ascanio and launched by Piaggio in 1946?

• A Lambretta
• B Vespa ✓
• C Ciao
• D Garelli

The Vespa was designed by helicopter engineer D'Ascanio, who hated motorcycles and created the step-through design so riders could keep their clothes clean.