Why is there no change in supply and demand but increase in quantity?

2. For no apparent reason, automobile manufacturers decided to increase the price of all of their cars by 20%. Demand: Inc / Dec / No change Supply: Inc / Dec / No change Price: Inc / Dec / No change / Uncertain Quantity: Inc / Dec/ No change / Uncertain Which determinant of demand or supply has changed? Demand: (Low Q4 QQWM Supply: (mm, as algal/aw