ANSWER
The graph of y = sin θ shifted to the left by π/2 units
EXPLANATION
This is the graph of y = sin θ shifted to the left π units. In function notation, this shift is represented by adding π to the variable: y = sin (θ + π).
Also, we know that the graph of y = cos θ is like the graph of y = sin θ but shifted π/2 units to the left. So, if we shift the graph of y = cos θ π/2 units to the left, we get the given graph.
Therefore, the only description that does not match the graph is the graph of y = sin θ shifted to the left by π/2 units.
