Consider the following statements:1. The required yield of a retaining wall to reach equilibrium in the active case is less than for the passive case.2. The active pressure caused by a cohesionless backfill on a smooth vertical retaining wall may be recused by compacting the backfill.3. Given a choice, one should prefer a cohesive soil for a backfill vis-à-vis a non-cohesive soil.Which of the above statements are correct?

Consider the following statements:1. The required yield of a retaining

1.	Consider the following statements:1. The required yield of a retaining wall to reach equilibrium in the active case is less than for the passive case.2. The active pressure caused by a cohesionless backfill on a smooth vertical retaining wall may be recused by compacting the backfill.3. Given a choice, one should prefer a cohesive soil for a backfill vis-à-vis a non-cohesive soil.Which of the above statements are correct?
A.	1, 2 and 3 only
B.	1 and 2 only
C.	1 and 3 only
D.	2 and 3 only
Answer» C. 1 and 3 only

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