You are given the vx–t graph for an object moving along the x-axis with constant acceleration. Which of the following could you not determine from the information given in this graph alone?

A、the object’s x–acceleration at any time t;
B、the object’s x–velocity at any time t;
C、the object’s position at any time t;
D、more than one of the above;
E、misleading question — you could determine all of these from the vx–t graph alone