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(C) To find the rate of interest $(r)$,we need the principal $(P)$ and the interest earned.From statement $III$,Simple Interest $(SI)$ for $2$ years i

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Only $II$ and $III$

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(C) To find the rate of interest $(r)$,we need the principal $(P)$ and the interest earned.From statement $III$,Simple Interest $(SI)$ for $2$ years is ₹ $3,000$. Therefore,$SI$ for $1$ year is ₹ $1,500$. Consequently,$SI$ for $3$ years is $3 	imes 1,500 = ₹ 4,500$.From statement $II$,the amount $(A)$ after $3$ years is ₹ $19,500$. Since $A = P + SI$,we have $19,500 = P + 4,500$,which gives $P = 15,000$.Now,using $SI = \frac{P 	imes r 	imes t}{100}$,we have $1,500 = \frac{15,000 	imes r 	imes 1}{100}$.Solving for $r$,we get $r = \frac{1,500}{150} = 10 \%$.Thus,statements $II$ and $III$ are sufficient to find the rate of interest.

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