The reason she is not here is because she is ill.
misplaced modifier
dangling modifier
faulty predication
incomplete comparison
answer
A
Nope.
http://www.nipissingu.ca/english/hornbook/faultpre.htm
The reason she is not here is because she is ill.
This sentence does not contain any misplaced modifier, dangling modifier, faulty predication, or incomplete comparison. It is a properly constructed sentence.