Answer :
The writer must anticipate the opposition. Generally you wouldn't believe a writer's argument if they refuse to acknowledge the other side of it.
To make a strong argument, a writer must anticipate the opposition. The last option is correct.
When writing an essay, authors will introduce their point of view with regard to a particular topic. In doing so, they will have to provide some accurate evidence to strongly support the argument, and a suitable way to back up and stregthen the author stance in relation to the topic addressed in the writing is by anticipatin the opposition. In other words the writer assumes what can other writers say against his argument and think about it deeply.
