Given the following function and assuming you are using white$-$box testing, which of the following sets of inputs describe an equivalent class?

def a$($x$)$:

if$($x $>0)$:

print$("$x is positive"$)$

elif$($x $<0)$:

print$("$x is negative"$)$

else:

print$("$x is $0")$

$-42,-65,1,0$

$1,5,89,62$

$0,5,28,87$

$89,692,-9,-12$