I don't know if you need this for a class, but I looked it up.
"Have humans been cloned?
Despite several highly publicized claims, human cloning still appears to be fiction. There currently is no solid scientific evidence that anyone has cloned human embryos." - genome (dot) gov
It is a simile because it is a figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid.
The 2017 Las Vegas shooting was a mass shooting on the night of October 1, when a gunman opened fire on a crowd of concertgoers at the Route 91 Harvest music festival on the Las Vegas Strip in Nevada.
The answer for this question is A. Predicate adjective.