A body starts from road. What is the ratio of the distance travelled by the body during 4th and 3rd second

Question

$\begin{array}{1 1} (a) \;\large\frac{7}{5} \\ (b) \;\large\frac{5}{7} \\ (c) \;\large\frac{7}{3} \\ (d) \;\large\frac{3}{7}\end{array}$