The spanish encomienda system was similar to feudalism, except that

a.
native americans living under the encomienda system kept ownership of their land.

b.
native american labor was controlled by an encomendero, a man who was granted control of the land.

c.
encomenderos could demand taxes or labor from those under their control.

d.
encomenderos usually controlled large plots of land.

The Spanish encomienda system was similar to the feudalism system except that  Native Americans living under the encomienda system kept ownership of their land.

In the feudal system, the land was owned by the wealthy and the noblemen in the society. In return for the land that the nobles gave them, the people had to fight for and work for the nobles.

In the encomienda system, the people that were regarded as the conquerors were rewarded with the labor of the people that they had conquered. These people were usually the non Christians.

Read more on link

D. encomenderos usually controlled large plots of land.

Explanation:

The encomienda, originally applied in the Antilles region in 1503, with a later projection in other parts of Spanish America, included in the colonial legislative records until the eighteenth century, was a legal institution imposed by the crown to regulate the collection of taxes and circumscribe the exploitation of indigenous labor. Established from a contractual arrangement, it is characterized by the submission of a variable number of indigenous "taxpayers" to a encomiendero, - initially the most notable Spanish soldiers in the wars of conquest - responsible for making possible their incorporation into the cultural, economic and social policies. Within the territorial circumscription, the encomienda is not a concession of land, but a concession of collection of taxes. Unlike slavery, it is neither perpetual nor transmitted hereditarily, since the natives, at least legally, were taken not by property, but by free men, although an approximation between the two is possible, since they are expressions of the form of compulsory labor.

The exploitation of labor could only be carried out by means of the concession made by the Spanish Crown. The encomienda was passed on only for two generations after the beneficiary. Although there was an express prohibition, the Spaniards subjected the Indians to various situations of aggression and took the lands of the native communities. Over time, several Jesuit clerics denounced the abuses against the Indians.

With this reasoning we can conclude that only the letter D presents a difference between feudalism and encomienda.

formulating the initial idea for the policy

answer is c.