Advertising can influence consumers' moods， in turn，can influence consumers’reactions to products．
A. that
B. which
C. where
D. when
网友回答
A. that
B. which
C. where
D. when
解析：考查非限制性定语从句。句意：广告会影响顾客的心情，反过来，也会影响顾客对于产品的反应。Which代指advertising，in turn，反过来，是插入语，故选B项。
考点 : 考查非限制性定语从句