Correct Answer: DISRESPECTFUL

Solution : The correct answer is the second option.

Explanation:

The word blasphemous refers to something that shows disrespect or contempt for sacred or religious beliefs.

The term disrespectful is a synonym for blasphemous as it also conveys a lack of respect or reverence, especially in a religious or sacred context.

The meanings of the other options are as follows:

Costly: It refers to something expensive.

Reality: It refers to the state of things as they are, or the real world.

Authentic: It refers to something genuine, real, or true.

Therefore, the correct synonym is disrespectful.