A．Consumers began to resist buying products of these ads.
B．Consumers stopped their environmental movement.
C．Consumers turned cautious of environmental appeals.
D．Consumers didn't care about them all the time.
A．They became more popular.
B．They were more regulated.
C．They grew less honest.
D．They became better produced.
A．The use of spices in cooking in the Middle Ages.
B．The significance of spices for medieval society.
C．The development of spice trade in medieval Europe.
D．The changes in the role that spices played in the Middle Ages.