Select the most appropriate option to fill in the blank. My cousin's study on the reading habits of school children across three states has been recognised as a _____ piece of research.

Options

A. negligent
B. useless
C. pioneering
D. proud

Explanation

My cousin.s study on the reading habits of school children across three states has been recognized as a `ul("pioneering")` piece of research. Pioneering means ‘involving new ideas or methods’