Which best describes the career pathways of each worker? letitia works in animal systems, jared works in food products and processing, and duane works in natural resource systems letitia works in animal systems, jared works in agribusiness, and duane works in environmental service systems letitia works in natural resource systems, jared works in agribusiness, and duane works in plant systems letitia works in environmental service systems, jared works in plant systems, and duane works in food products and processing