Where is the removable discontinuity of f(x)=x+5/x^2+3x-10 located

a. x=-5
b. x=-2
c. x=2
d. x=5

We are tasked to solve for the removable discontinuity of the expression below:
f(x) = (x+5) / (x²+3x-10)

Factoring the denominator, we have:
f(x) = y = (x+5) / (x+5)(x-2)

Canceled out (x+5) which is common in numerator and denominator, we have:
y = 1 / (x-2)

Removable discontinuity is (x+5) or x= -5. The answer is the letter "A". 

Idon’t know actually is more difficult