The furrow opener used for planting cotton seeds in areas where the uncertainty of favourable weather for germination is

The furrow opener used for planting cotton seeds in areas where the un

1.	The furrow opener used for planting cotton seeds in areas where the uncertainty of favourable weather for germination is
A.	Variable depth furrow opener
B.	Constant depth furrow opener
C.	Disc type furrow opener
D.	Stub runner type furrow opener
Answer» B. Constant depth furrow opener