Answer:
the 4th answer
Step-by-step explanation:
well, any negative number up to leading to a 0 in the denominator will create a result <= 0.
because the numerator with x² will be positive. and the denominator with x will be negative.
so, it has to be the third or the fourth answer.
but then the 3rd answer includes -infinity in the interval ("["). and that cannot be right.
so, it leaves the 4th answer as the only possible right answer.
just as an additional quick check : large positive numbers for x will always create posits results for this fraction, so the 1st and 2nd answers do not fulfill the <=0 condition.
