The graph of quadratic function r is shown on the grid. A graph is shown in the xy-plane. The values on the x-axis ranges from negative 2 to 5 in increments of 1 and the values on the y-axis ranges from negative 2 to 6 in increments of 1. A parabola is shown on it that opens downward and has vertex at (2, 6).

Which of these best represents the range of r ? space

A
y less or equal than 6

B
negative 0.5 less or equal than x less or equal than 4.5

C
y greater or equal than 6

D
all real numbers