Discussion

Explanation:

Options 1 and 2 do not answer the question stem as to the respective roles of the public and private sectors in the national research system. The correct answer option should specify their respective roles.
Option 4 can be eliminated. As discussed by the author, especially in the fourth and fifth paragraphs, the author opines that knowledge repositories are for public use.  From paragraph 4: “Moreover, as is increasingly recognised, accumulated stock of knowledge does not reside only in the scientific community and its academic publications, but is also widely diffused in traditions and folk knowledge of local communities all over”.
The passage mentions, “The public sector must therefore continue to play a major role in the national research system. It is both wrong and misleading to pose the problem in terms of public sector versus private sector or of privatisation of research. We need to address problems likely to arise on account of the public-private sector complementarily, and ensure that the public research system performs efficiently.”
Option 3 mentions the complementary roles of public and private sector research which resonates with the above extract.
Hence, the correct answer is option 3.

» Your doubt will be displayed only after approval.