What might the author’s intent be when using encoded notes?

The author's intent in using encoded notes is likely to obscure information from unauthorized viewers. Encoded notes are designed specifically to transform information into a format that is not easily readable without the proper key or method of decryption. This is often done to protect sensitive or confidential information from those who do not have the authority or need to access it. In contexts such as security, privacy, and information protection, encoding serves as a critical tool to ensure that potentially harmful or sensitive details remain concealed from unintended recipients.

The other options do not align with the primary purpose of encoding information. For instance, sharing information openly and clearly would contradict the use of encoding, as that method inherently seeks to limit readability. Presenting historical data or showcasing literary skills could also be accomplished in straightforward formats without necessitating the obfuscation characteristic of encoded notes. Thus, the primary function of such notes is to protect and obscure rather than promote transparency or clarity.