Why is distribution of legislative power called 'three fold' distribution??

For the purpose of making laws, the subjects are divided into three lists :

(i) Union List : It includes subjects over which only the union government can make laws,

e.g.–defence, foreign affairs, currency etc.

(ii) State List : It contains those subjects over which the state governments have the powers

to make the laws, e.g. police, trade, irrigation, agriculture etc.

(iii) Concurrent List : It contains those subjects over which both the central and the state governments can make the laws but in case of a clash, it is the laws made by the Central government which will prevail.

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answer; delirium is a common adverse reaction seen when elderly patients take diphenhydramine;