Clearly not human, because they’re only half human. What you want to know is whether humanzees are people. I’d have to say no - while your description seems to imply sapience, which deserves a level of consideration and protection greater than that of most animals, you explicitly state that they can’t function at the level of an adult human. They can’t participate in the moral and social life of humans, and I would not want the creature you describe to vote, serve on a jury, or drive on public roads.
I would also support legislation prohibiting the creation of such a hybrid, and vigorously prosecute anyone who did it. It’s cruel and pointless, and repulsive. I’m also not answering the poll, as none of the choices fit.