The exercise $1\mathrm{.}10\mathrm{.}4$ contains a script $($ex$1)$ that plots the solution obtained from ode$45.$ It's saved on the desktop with its function as follows. Which of the following lines is found inside the script?

Select one:

a$.\text{'},$ tspan,$x0$;

b$.[tn,xn]=$ ode$45(\text{'}$non$\_$lin',tspan, $x$ span$)$;

c$.[t|,x|]=$ ode$45($ 'lin',tspan,xspna$)$;

d$.$ The script doesn't contain ode$45.$

e$.[$