Which word is the object complement in the sentence "after karen's third fall off the balance beam, hillary considered her sister clumsy"?

third

fall

clumsy

balance beam

Idon't know which one from these two forms is correct! "he believed that the technology of the future would allow robots to do the same tasks as a human." or "he believed that the technology of the future would have allowed robots to do the same tasks as a human. , it's ! i need your !