Rafflesia is the plant with largest flowers and found in many parts of the South East Asia. It is a :

Parasitic Plant

The correct answer is Option (4) – Parasitic Plant

The flower with the world's largest bloom is the Rafflesia arnoldii. This rare flower is found in the rainforests of Indonesia.

It can grow to be 3 feet across and weigh up to 15 pounds. It is a parasitic plant, with no visible leaves, roots, or stem.