Define Rate law and Rate constant?<o:p></o:p></p>

Question

$\begin{array}{1 1} \text{(a) rate =$ k[A]^m [B]^n [C]^p.... $, The 'k' is called the rate constant} \\ \text{(b) ${rate} = k^2[A]^m[B]^n[C]^p{\dots}$ , The 'k' is called the rate constant} \\ \text{(c) ${rate} = \frac{1}{k}[A]^m[B]^n[C]^p{\dots}$ , The 'k' is called the rate constant} \\ \text{(d)${rate} = k^3[A]^m[B]^n[C]^p{\dots}$ , The 'k' is called the rate constant} \end{array}$