Growth Model_Please solve this question

[A.Q.]

Suppose in an economy the ratio of consumption expenditure to aggregate income is
constant at 0.75, the rate of growth of the labor force is constant at 2% per annum and
the ICOR is constant at 6-year. The normal warranted rate of growth (percent per annum) for the economy equal to?
(a) 0.33
(b) 2.19
(c) 4.17
(d) 5.83

[soimmoi]

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[A.Q.]

Don't know the correct answer.

[soimmoi]

hey! it's c
ICOR = savings/ incremental capital o/p ratio
6 = 0.25/ g
g = 4.17