For the program P$,$ what is the ratio of execution time on M$1$ to that on M$2?$ Which

machine is better?

a$.1$ : $1,$ both same

b$.1\mathrm{.}2$ : $1\mathrm{.}3,$ M$1$ is better

c$.1\mathrm{.}2$ : $1\mathrm{.}3,$ M$2$ is better

d$.3\mathrm{.}3$: $2\mathrm{.}4,$ M$2$ is better