What error has been made in this email?

This device blocks an opening along the base/floor of stairs or other walking or working surfaces where materials or body parts might otherwise inadvertently fall through. it should be 4 inches high, with not more than ¼ inch clearance above the floor

Theme is question 26 options: the way the story is presented. overarching ideas that are presented in the story. the author�s message that he or she is communicating to readers. the way the story makes the reader feel.

Which two sentences in this excerpt from the time machine by h.g. wells suggest that the morlocks possesses a degree of intelligence comparable to that of humans