Q:

Which two species of coffee plants are primarily responsible for the majority of coffee production worldwide?

• 1
  Coffea Arabica and Coffea Canephora
• 2
  Coffea Robusta and Coffea Arabica
• 3
  Coffea Canephora and Coffea Liberica
• 4
  Coffea Excelsa and Coffea Arabica
• 5
  Coffea Arabica