You should avoid all of the following topics except. . . Topics that are controversial. Topics on a single source. Topics that are trivial. Topics that are contemporary.

Topics that are contemporary.

Explanation:

Hi. From the context of your question, we can see that you are referring to topics used to write a text or start a survey. In this case, among the types of topics presented above, you should not avoid contemporary topics, because they represent current and relevant issues in today's society and can enrich your text or research.

On the other hand, controversial and trivial topics should be avoided because of their irrelevance and low value. In addition, single-source topics should also be avoided as they do not present diverse and rich information.

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.