Which statement accurately describes the sectional differences in technology during the Civil War?
• Both sides used railroads and spying technology, but the South had better communication networks.
• Both sides used portable printing presses and telegraphs, but the South had better transportation networks and spying technology.
• Both sides used hot air balloons and battlefield telegraphs, but the North had better transportation networks.
• Both sides used hot air balloons and portable printing presses, but the North had better transportation and communication networks.