💡 Detailed Explanation
The word 'デタラメ' (detarame) refers to 'nonsense', 'hogwash', or 'irresponsible lies'. In this context, it is best synonymized with '嘘' (uso), which means 'lie' or 'falsehood'. The other choices do not align: '本当' means truth, '秘密' means secret, and '冗談' means joke.