The correct answer is B.
The Q point is the point of intersection of the load line and the collector characteristics curve. The load line is a straight line that represents the maximum collector current that can be drawn from the transistor. The collector characteristics curve is a graph that shows the relationship between the collector current and the collector voltage for a given base current.
When the base supply voltage increases, the base current increases. This causes the collector current to increase, which in turn causes the Q point to move up.
Option A is incorrect because the Q point moves up, not down.
Option C is incorrect because the Q point does move, it just moves up.
Option D is incorrect because the Q point does not move off the load line.
Option E is incorrect because the Q point does move, and it does so in a predictable way.