which of these is not a production system for raising swine? wean to finish free range alternative market…

Brief Explanations:

To determine which is not a swine production system, we analyze each option:

• "Wean to finish" is a swine production system (focuses on growing pigs from weaning to market weight).
• "Free range" is a general animal husbandry method (not specific to swine production systems like the others; it describes an animal's access to outdoor areas, not a structured swine production system).
• "Alternative market production" is a swine production system (for niche or non - conventional markets).
• "Farrow to finish" is a swine production system (covers the entire life cycle from farrowing to market).

Answer:

B. free range