Try this option:
1] P(S)=0.84;
2] P(S or C, but not both)=0.4;
3] P(C)=0.76;
4] P(S∪C)=0.6;
5] P(C, but not S)=0.16;
6] P(S∩C)=1.00.
X=2t
y=1-t
t=x/2
y=1-x/2
y=(-1/2)x+1
D.the number of times the drug has removed a certain percentage of fluid from the patient's lungs
