Choose the correct statements from the following:
(A) Adam Smith is termed as Father of Modern Economics.
(B) J.M. Keynes gave the Theory of Income, Output and Employment.
(C) Four Sector Model = C + I + G + (X – M)
(D) Store of value is primary function of money.
Choose the correct answer from the options given below:

Correct option is B

(A) True - Adam Smith is often referred to as the "Father of Modern Economics."
(B) True - John Maynard Keynes developed the theory concerning income, output, and employment, particularly elaborated in his book "The General Theory of Employment, Interest, and Money."
(C) True - The four-sector model in economics consists of consumption (C), investment (I), government expenditure (G), and net exports (X - M).
The statement (D) is incorrect as "medium of exchange" is typically considered the primary function of money, although "store of value" is also a crucial function.