According to the different methods of value transfer, capital can be divided into fixed capital and working capital. Working capital refers to a capital whose value can be transferred to new commodities at one time during the production process, and fixed capital refers to its value which can only be gradually transferred to Capital in new commodities. According to the above definition, which of the following is the following as working capital? ['Sewing machines, workshops, and fabrics in garment processing plants.', 'Producers of garment processing factories, auxiliary materials such as sewing machines and buttons.', 'Producers of clothing processing factories, auxiliary materials such as cloth and buttons.', 'Buildings, producers and fabrics of garment processing plants.']