Which of the following is a common feature of tragedy?

The correct answer is - খ) There must be a conflict in it.• Tragedy:The Common features of tragedy are:1. Its story involves serious aspects of mankind and demands attention.2. It usually shows a highly reputed person's fall into misery for a flaw in his character.3. The action moves from order to disorder.4. It aims at the purgation of pity and fear of the audience.5. There must be a conflict in it.6. Its tone is serious.• There are several kinds of tragedies:Such as -- Tragi-comedy,- Heroic tragedy,- Senecan tragedy,- Revenge tragedy, etc.Source: An ABC of English Literature by Dr M Mofizar Rahman.