What is the name of the world's largest flower, a parasitic plant with blooms reaching over one metre in diameter that emits a rotting-meat odour to attract pollinating flies, found in the rainforests of Peninsular Malaysia and Borneo?

• A Titan arum
• B Rafflesia ✓
• C Pitcher plant
• D Corpse lily

Rafflesia, named after Sir Stamford Raffles, has no leaves, stems, or roots and grows entirely within its host vine until the flower bud bursts through the bark; several species are found in Malaysian rainforests.