Answer
a) Cannot occur
b) Cannot occur
c) Can occur
d) Cannot occur
Work Step by Step
About 2/3 of the seeds are launched between $6^{\circ}$ and $56^{\circ}$ above horizontal. The average is approximately $31^{\circ}$.
For choice (a) to be correct, the seeds would need to cluster around 90°, which is false.
For choice (b), most seeds would need to launch below the horizontal, which is not the case.
For choice (c), the launch angle should be around +45°. Since 31° is not far from 45°, this is the best choice.
For choice (d), the seeds should go straight downward. This would require a launch angle of –90°, which cannot happen.
