Which of the following statements are correct for "Tillage"?
(A) The most important objectives of tillage are seedbed preparation, increasing soil fertility, and soil moisture conservation.
(B) Tillage increases the bulk density of soil in the long run.
(C) Tillage improve soil tilth, soil aeration and root penetration.
(D) Tillage removes hard pans thus increase the soil depth for water absorption.
Choose the correct answer from the options given below: