单选题In the sentence “...some of which have become his trademarks”，the word “trademarks” means ______.A product brandsB speaking mannerC advertising strategyD special characteristics
题目
单选题
In the sentence “...some of which have become his trademarks”，the word “trademarks” means ______.
A
product brands
B
speaking manner
C
advertising strategy
D
special characteristics