I need help with another graph of a typical demand curve for chicken breast in the space

below. Label an initial point "A". Now suppose thathamburger goes on sale.

If we assume hamburger and chicken breasts are both popular at cookouts, what effect, if any, does the lower price of hamburger have onthe market for chicken breast? Illustrate this change on the graph belowby adding a new point, "B" to the graph. All curves, shifts and axeson the graph.