The value of a stock increases 14 2/3 points twice in one week.the other 3 days the value decreases by 10 points,8 1/3 points and 12 2/3 points.By how many points did the value of the stock change that week? A 2/3 points. B 1/3 points C -1 1/3 points D -1 2/3 points