[单选题]
The diagram below show7 )clz8ey vxp7s a kj v u)zb ac,7km672lkpotometer which is used to measure water uptake in plants.kc6 a) m v7jb2z7ulk,k
A plant cutting was placed in the potometer as shown above. What changes would be observed after a few hours?
A. The water in the reservoir will increase.
B. The bubble will move right towards the direction of the beaker.
C. The bubble will move left towards the direction of the plant.
D. The water level in the beaker will rise.