Which of the following functions is graphed below ?(:

Answer:
correct option is C.) y = [x] + 5
Step-by-step explanation:
The greatest integer function gives the largest integer less than or equal to that number.
The graph of greatest integer function Y = [x] is shown in figure-1
so, if we add 5 in function Y = [x] then this is shown as given in figure.
hence correct equation of graph is Y = [x]+5