Explanation:
according to the drawing:
the first domain : -1≤ x ≤ 0
the second domain : 0< x < oo
the total domain : [-1,  oo) 
the first range : 0 ≤ y ≤ 1
the second range : -1< y < oo
the total range : [0, oo) 
so, the correct answer is 
a. Domain: [-1, oo)  Range : [0, oo)