One major difference between disc plough and disc Harrow is?

A. Disc plough is used to create wider ridges on the field than disc Harrow
B. A disc plough can have up to 54 discs on it at once whereas a disc harrow can have up to 6 disc
C. Disc plough is used to tilled the disc harrowed land
D. The disc part of plough is notched while that of harrow is round

Correct Answer: Option A

A. Disc plough is used to create wider ridges on the field than disc Harrow

Explanation

Disc plough is used to create wider ridges on the field than disc harrow, because its disc are notched and about 54 discs can be used together at once, and also it is first used before disc harrow.