Reena was making -notes of the chapter 'Soil'. She wrote down the given points from the chapter.
I. The formation of soil is independent of climate of an area.
II. Water helps in the formation of soil.
III. Soil contains small particles of rocks.
IV. The top soil and the sub-soil contain humus.
However, she later realised that she bad made some mistakes in her notes.
Which of the following pairs of statements is incorrectly written by Reena?

Options

A. I and II
B. II and III
C. II and IV
D. I and IV