Millionaire Mode

Directions: The sentence has four underlined words or phrases. The four underlined parts of the sentence are marked (1), (2), (3) and (4). Identify the one underlined word or phrase that must be changed in order for the sentence to be correct and mark it as your answer.

A necklace of diamonds, (1) presented by the friends of the bride (2) were among (3) the presents (4) on view.