What are the natural period of oscillation $()$ and damping factor $()$ for this second$-$order

system model?

$G(s)=\frac{K}{2s^2+1\mathrm{.}5s+0\mathrm{.}5}$

$1\mathrm{.}4,0\mathrm{.}54$

$2,1\mathrm{.}5$

$2,0\mathrm{.}75$

$1\mathrm{.}4,1\mathrm{.}5$