President Grover Cleveland rejected the effort to annex Hawaii because

President Grover Cleveland rejected the effort to annex Hawaii because
 
  a. he thought the annexation of Hawaii would drain the U.S. Treasury because the island was weak economically.
  b. the United States did not have the naval power to protect the islands against Japanese or German threats.
  c. he believed that the native Hawaiians had been wronged and that a majority of Hawaiians opposed annexation to the United States.
  d. passage of the McKinley Tariff made Hawaiian sugar unprofitable.
  e. the United States would soon have to establish military bases in Hawaii.