Which item weighs the least among the following?

The duck is the least heavy among the options provided. When considering the typical weights of these items, salmon generally tends to be lighter than duck; however, the weight can vary significantly based on portion sizes. A ribeye steak, being a large cut of beef, usually weighs more than a duck. A full rack of lamb also typically represents a heavier item, given that it’s often a sizable cut meant to serve multiple portions.

Duck, when evaluated in standard serving sizes, is usually less in weight compared to the others listed, making it the right choice in this context. It’s important to consider that while the specific weights can vary, a standard duck does not reach the heft of a ribeye or a full rack of lamb.