doubt

developed countries have made adequate provisions for social security for senior citizens.state insurers(as well as private ones) offer medicare & pension benefits to people who can no longer earn.in india,with the collapse of the joint family system,the traditional shelter of the elderly has disappeared.and a state faced with financial crunch isn't in a position to provide social security.so,it is advisable that the working population give a serious thought to building a financial base for itself.

which of the following weakens the conclusions drawn in the passage,the most?

a)the investible income of the working population,as a proportion of its total income ,will grow in the future

b)the insurance sector is underdeveloped & trends indicate that it'll be extensively privatised in the future

c)india is on the path of development that'll take it to the developed country status,with all its positive & negative implications

d)if the working population builds a stronger financial base,there will be revival of the joint family system

i think the ans should be (d),but i'm not sure. plz state the correct ans alongwith the explanation