A.Light Thinning (A-Grade)
B.Moderate Thinning (B-Grade)
C.Heavy Thinning (C-Grade)
D.Very Heavy Thinning (D-Grade)
E.All of the above
A.Light Thinning (A-Grade)
B.Moderate Thinning (B-Grade)
C.Heavy Thinning (C-Grade)
D.Very Heavy Thinning (D-Grade)
E.All of the above