What is the output of the following conditional code when the value of input is each of the following?

if type$($input$)l=$ float:

message$\_$end $=\text{'}$an invalid input. $.$

elif input $<mi\; id="EditorElement\_2523182"></mi>$ :

message$\_$end $=$ 'negative. $.$

elif input $>0$ :

message$\_$end $=$ 'positive.

else:

message$\_$end $=$ 'zero.$\text{'}$

print$($input$,\text{'}$is$\text{'},$ message$)$

$($a$)5\mathrm{.}0$

$($b$)-2$

$($c$)$ 'Three'

$($d$)0\mathrm{.}0$