A Researcher Is Designing a Study and Is Debating the Potential

A researcher is designing a study and is debating the potential use of deception. After discussing the issue with her colleagues, it is decided that there really is no alternative methodology that she could use to test her idea. Having said this, all of her colleagues agree that the cost of using deception in her study would strongly outweigh any positive benefits that would be gained from the study. Given this information, which of the
Following statements is true?

A) The use of deception in this study is ethically justified.
B) The use of deception in this study is ethically justified, only if she does not tell her participants about the deception after the study is over.
C) The use of deception in this study is ethically justified, only if she uses the double-blind procedure.
D) The use of deception in this study is not ethically justified.