What does the term "surreptitious" mean?

The term "surreptitious" refers to actions or behaviors that are performed in a secret or stealthy manner, often to avoid being noticed. This characteristic implies a level of caution and quietness, as the intent is usually to keep certain actions hidden from others. The essence of "surreptitious" conveys a sense of secrecy, which is pivotal in understanding the term.

In this case, the definition aligns well with the idea of something being marked by quiet, caution, and secrecy, making it the appropriate choice. The other options describe qualities that contradict the nature of being "surreptitious." For instance, being open and public directly opposes the idea of secrecy, while qualities such as quickness and efficiency or obviousness and clarity do not encompass the discretion and carefulness implied by the original term.