Final answer:
The answer to the question is 'c. Designer,' which is not a soft skill but rather a professional role that encompasses both technical and creative abilities, unlike work ethics, communication skills, and interpersonal skills, which are all considered soft skills.
Step-by-step explanation:
The option that is not a soft skill in the provided list is c. Designer. Soft skills refer to personal attributes that enable someone to interact effectively and harmoniously with other people. Options such as work ethics, communication skills, and interpersonal skills are all considered soft skills because they relate to how one works and communicates with others. In contrast, being a designer is a professional role that requires a mix of technical skills, creativity, and problem-solving abilities. While communication and interpersonal skills may be important for a designer, the role itself is not classified as a soft skill.
Furthermore, soft skills like effective communication and the ability to interpret the behavior of others are valuable across various industries and career paths. Good communication skills, in particular, are often highlighted in job advertisements and are highly prized in professional settings.