The correct options will be:
b. immersion blender.
b. mandoline.
C. beat and add air to light foods.
C. Convection steamer.
An immersion blender is a long, stick-like machine that houses a motor on one end and a blade on the other end. It is used for blending, pureeing, and emulsifying foods directly in the container in which they are being prepared.
A mandoline is a manually operated slicer made of stainless steel with adjustable blades that can slice and julienne vegetables and other foods. This device fits the description provided.
A flat beater paddle is an attachment commonly used with stand mixers. It is designed to beat and add air to light foods like cake batter and whipped cream.
In a convection steamer, steam is generated in a boiler and then piped to the cooking chamber. This steam is vented over the food, providing a controlled and even cooking environment.