The $A.M., H.M.$ and $G.M.$ between two numbers are $\frac{144}{15}$,$15$ and $12$,but not necessarily in this order. Then $H.M., G.M.$ and $A.M.$ respectively are
- A$15, 12, \frac{144}{15}$
- B$\frac{144}{15}, 12, 15$
- C$12, 15, \frac{144}{15}$
- D$\frac{144}{15}, 15, 12$
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