A certain body is thrown at an angle of 30° to the horizontal with a speed of 20m/s. What is the time the body takes to reach the maximum height?

here is my answer

Explanation: Note also that the maximum height depends only on the vertical component of the initial velocity, so that any projectile with a 67.6 m/s initial vertical component of velocity will reach a maximum height of 233 m (neglecting air resistance)

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there's no diagram, nothing is illustrated, and no question is asked.

i believe the answer would be:

d. violin, clarinet, french horn, and tuba