What is the term for plowing,breaking up,and smoothing the soil in the autumn in order to facilitate planting in the spring? 

A)  conservation tillage 
B)  conventional tillage 
C)  terracing 
D)  contour farming

Conventional tillage involves plowing, breaking up, and smoothing the soil in preparation for planting. This is typically done in the fall to allow the soil to settle and break down over the winter months, which facilitates planting in the spring. Conservation tillage, terracing, and contour farming are all different methods of soil management that aim to reduce soil erosion and improve soil health, but do not necessarily involve the same level of soil disturbance as conventional tillage.