Option 4 is rightly spelt. The correct spelling is --Thriller-- it means an exciting plot, typically involving crime or espionage. For example : She loved watching thriller movies like Psycho. The correct spelling of the other words should be--
Ignorance: lack of knowledge, understanding, or information about something
Collaborate: to work with someone else for a special purpose
Interrupt : o stop a person from speaking for a short period by something you say or do