Which of the Following Values of V_D/V_T, Are Suitable for Weaning

Multiple Choice

Which of the following values of V_D/V_T, are suitable for weaning?
1) 0.10
2) 0.20
3) 0.30
4) 0.60

A) 1 and 3 only
B) 1, 2, and 3 only
C) 3 and 4 only
D) 2, 3, and 4 only