The term "bargadars" refers to sharecroppers because they are individuals who cultivate and work on someone else's land in exchange for a share of the agricultural produce. In many agricultural systems, landowners allow sharecroppers to use their land and provide labor, while the sharecroppers get a portion of the harvested crops as compensation for their work. This arrangement is common in many agrarian societies and is often referred to as sharecropping, with "bargadars" being the term used to describe the individuals who engage in this type of agricultural labor arrangement.

So,the correct option is [3].