To what does the term 'perilous' pertain?

The term 'perilous' specifically refers to something that involves or is full of danger or risk. It is used to describe situations, events, or conditions that pose a significant threat to safety or well-being. When you encounter this word, it evokes the notion of threat or harm, making it important to understand the context in which it is used. For example, one might refer to a 'perilous journey' to indicate that the journey is fraught with risks, such as treacherous terrain or adverse weather conditions. This aligns perfectly with the correct answer, highlighting its association with danger rather than safety, positivity, or simplicity, as suggested by the other options.