Find an example of commodification, either rhetorical or actual.
Commodification is treating something (that isnt always/normally treated as one) like a commodity, i.e. something we buy and sell.
Actual commodification is when you can actually buy the thing (e.g. paying for blood, human organs, rentafriend.com).
Rhetorical commodification is when you talk about things as if they are commodities (e.g. a market in marriages).