Answer:
A. 0 ≤ t≤ 4.25
Step-by-step explanation:
Now, for practical situation, it is clear that value of height can not be a negative number. So, if we use elimination method, B can not be an answer because in real numbers there are also negative numbers.
For D, if you put 17, it will make the resultant height negative, so it is eliminated as well.
Now, for C, you can note that even numbers larger than 2.125 can produce the valid results, so it is eliminated as well.
Now, for A, if we put 4.25, it will produce 0, and values bigger than 4.25 will produce negative results, so A is the valid answer here.