Riddle

A white field, and when it is plowed, its soil is black.

Choose an answer

A.A chalkboard
B.A canvas
C.Snow
D.Paper
Hint: It's a word with 5 letters, starting with "P".

Answer

Paper

Why this is the answer

A blank sheet of paper is the "white field," and writing on it with ink, "plowing" it with a pen, leaves black marks like turned soil.

This riddle is filed under Hard/Difficult Riddles and rated Medium.