Assertion: american destroyer | /r/HasProperty | preferred option
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text: Despite the American destroyer being the preferred option, the conclusion of the selection process in late June 2007 saw Navantia's Álvaro de Bazán design selected: the Spanish ships were considered a less-risky design as, unlike the Evolved Arleigh Burkes (which at this point only existed as an on-paper design), vessels of the Spanish design had been built and were operational.