Which sentence from the passage is written in passive voice?
the tricks of the trade were performed with great ease by a troupe of yoyo prodigies.

they spun the yoyos at breakneck speeds that seemed to defy gravity.

as roger continued to watch, he had an urge to pick up a yoyo and try his hand at making his own amazing tricks.

he stood mesmerized by the spectacle that took place right in the middle of the mall.