(A) is incorrect. The correct formula is:
Per capita income = Total income of the country ÷ Total population of the country.
None of the given options state this correctly; however, (A) reverses the formula — the right answer would be Total income ÷ Total population.
> The correct option is: None of the above (the formula is inverted in all options), but if forced to choose the closest, the intended answer is (A) with the understanding that the numerator and denominator are swapped in the question — i.e., Per capita income = Total income ÷ Total population.
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(If the exam expects selection from the given choices, the intended answer is (A), treating it as a printing error where numerator and denominator are swapped.)