What is the difference between counterclaim and counterargument

Which describes the effect the use of figurative language has on the tone of this excerpt? select all that apply

Why did orson welles change the beginning of the war of the worlds for his radio broadcast? a. to capture the attention of his listeners, who may have been doing other things b. to get around copyright laws associated with using material from a published book c. to ask members of the audience to call family and friends and encourage them to listen d. to remind listeners to call police for more information

Need some on this. which answer is it?