Machines, materials, and money are all considered to be:
a. management
b. small businesses
c. partnerships
d. factors of production

Machines, materials and money are all considered to be factors of production. The correct option among all the options given in the question is option "D". For any kind of production on a large scale to be successful, money is highly important. With that money the materials needed for production can be bought and machines will help in large scale production. So all the three are interconnected. 

Ithink it is a i’m not for sure

You need to give the options.