Victoria Registered a Trademark Under the Lanham Act

Victoria registered a trademark under the Lanham Act.Six years later Don noticed Victoria's trademark and filed a lawsuit to enjoin her from using it.He proved he had registered the mark in several states more than ten years before Victoria obtained her trademark.Will Don prevail?

A) Yes. Victoria should have conducted a better search of trademarks registered under state laws.
B) Yes. Federal law specifically states a federal trademark is not valid for any lawful owner of the same mark under state law.
C) No. Don will not prevail and Victoria can continue to use the mark because of the time involved.
D) None of the above.