Consider a differential equation $\frac{dy}{dt}-y=t$ with $y(0)=0$ using Euler's method with a step size

$0\mathrm{.}1,$ the value $ofy(0\mathrm{.}3)is$

Select one:

$a.0\mathrm{.}031$

$b.0\mathrm{.}1$

$c.0\mathrm{.}01$

$d.0\mathrm{.}021$