You need to give us more description.
B because this is the only one where the possessive s is in the right place
<u>Answer:</u>
In the time of the world war 2, propaganda is everywhere which helps in complete analysation of the details. All the commercials were taken into consideration which were used effectively in the world war 2. Different types of techniques were used in each war which also determined the effectiveness of the techniques. There were leaders of the allied forces which played an important role in the world war 2.
