Major operations and supply planning activities can be grouped into categories based on the relevant time range of the activity. Into what time range category does sales and operations planning fit? What category of planning covers a period from a day to six months, with daily or weekly time increments? In the agriculture industry, migrant workers are commonly employed to pick crops ready for harvest. They are hired as needed and are laid off once the crops are picked. The realities of the industry make this approach necessary. Which production planning strategy best describes this approach? What is the term for a more complex production strategy that combines approaches from more than one basic strategy? List at least three of