She is worried about Down syndrome

A 36-year-old mother is pregnant. She is worried about Down syndrome. All
of the following findings suggest Down syndrome except:
a. Increased HCG
b. Nuchal fat
c. Decreased alpha feto protein
d. Decreased unconjugated estriol
e. VSD

Question seems to be wrong. What is the source?

Nuchal fat - increased or decreased?

VSD - any specific type?

optiona - a,c,d are correct

All options are suggestive of downs syndrome