this excerpt gives the idea that the search for the missing navy planes\na was not successful and did not…

this excerpt gives the idea that the search for the missing navy planes\na was not successful and did not find a cause for the disappearance.\nb was very helpful and answered many questions.\nc was big news that got people interested in unsolved mysteries.\nd was not very thorough and may have missed some clues.\nno one has ever found out what happened to the planes or to the men. they were all gone. the navy had a meeting to try to find out what happened, but there were very few facts to go on. the questions about the missing planes were unanswered

this excerpt gives the idea that the search for the missing navy planes\na was not successful and did not find a cause for the disappearance.\nb was very helpful and answered many questions.\nc was big news that got people interested in unsolved mysteries.\nd was not very thorough and may have missed some clues.\nno one has ever found out what happened to the planes or to the men. they were all gone. the navy had a meeting to try to find out what happened, but there were very few facts to go on. the questions about the missing planes were unanswered

Answer

Brief Explanations:

The text states that no one has found out what happened to the planes or the men, and the Navy meeting had few facts to go on with questions remaining unanswered. This indicates the search was unsuccessful and no cause for the disappearance was found.

Answer:

A. was not successful and did not find a cause for the disappearance