Respuesta :
need 2 see the paragraph but
A) starts w But so its not a conclusion
C) starts w Even though - not a conclusion
B) It is not the only toy...imply theres more - not a conclusion.
only ans left n it is a conclusion: D) Wham-O became the most successful manufacturer of hula hoops, and it is still a popular toy today.
A concluding statement is a statement that includes a summary of what has been said. So it should not start with words like "But" or "Even though which rules out A) and C). If B) states which toy has a long and interesting history, then it could be the answer. As it is, the only answer that can be a concluding statement is D) Wham-O became the most successful manufacturer of hula hoops, and it is still a popular toy today.