Question 4.

Since this message was couched in terms of Chomskyan theoretical linguistics, in discourse so opaque that it was nearly incomprehensible even to some scholars, many people did not hear it. Now, in a brilliant, witty and altogether satisfying book, Mr. Chomsky's colleague Steven Pinker . . . has brought Mr. Chomsky's findings to everyman.

From the above excerpt, it is clear that Mr. Pinker's style of writing is much more comprehensible to the common man. Hence, their writing styles are quite different. Also, the above excerpt mentions that the book brings Mr. Chomsky's findings to everyman, hence, it is clear that it draws heavily from the findings. Options A and D are eliminated.

Unlike Mr. Chomsky, Mr. Pinker firmly places the wiring of the brain for language within the framework of Darwinian natural selection and evolution.

The above excerpt shows that they both disagreed on a certain point. Hence, Option B is eliminated too.

Option C finds no mention in the passage, hence, is the answer.