Legal advisor and marketing researcher are examples of
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White-collar jobs.

Explanation:

A white-collar worker is a term used since the mid-20th century to describe any individual or social group engaged in a job that requires higher education and professional qualifications, or little or no physical work. Depending on the context, the term white collar may be synonymous with new forms, that is, the working class layer - as opposed to the traditional forms used for the term blue collar - or the middle class, and sometimes the upper class.

White collars are generally better educated and better paid than blue collars. They are characterized by individualism and a greater propensity for liberal ideas as opposed to blue-collar workers who prefer collectivism and conservative values.

answer; ///(d); determining who competes most closely   with whom evaluating whether industry driving forces and competitive pressure favor some strategic groups and hurt others, and ascertaining whether the profit potential of different strategic groups varies due to the strengths and weaknesses in each groups respective market positions;