Positive statements are a. prescriptive. b. claims about how the world should be. c. claims about how the world is. d. made by economists speaking as policy advisers.

option c

Explanation:

Positive statements are statements that are descriptive, they explain the natural things of a content , they are claims and definitions of how things are and gives a difference in view.

They in other words explain the give claims of how something is. Relating to the question above, they are statements that claims how the world is.

she recieved a treatment not thought to be specifically effective in treating her disorder.