Consider the following graph of the autonomous differential equation dy dt = f(y). Which of the following is true? 6 8 765 3 21 1 23 4 5 3 O The solution y = 2 is a source, and y 5 is a sink. The solution y = 2 is a source, and y = 5 is a source. O The solution y = 2 is a source, and y = -5 is a node. The solution y = 2 is a sink, and y = -5 is a source. The solution y = 2 is a sink, and y = -5 is a node