a$.$ It should be possible to adjust the voltage between $-2$V and $+2$V using one potentiometer.

It should not be possible to accidentally obtain a voltage outside this range.

b$.$ The circuit should use as little power as possible, should not exceed $50$mA$.$

c$.$ The default resistance load $($RL $)$ is $10$M$.$

Available components:

$$ Potentiometers: $5$K$,10$K$,50$K$$

$$ Assorted resistors with values from $1\mathrm{.}1$ to $10$M$$

$$ Analog Discovery Power supply: $+5$V and $-5$V