| (a) | \(x(t)>0\) for all \(t>0\) |
| (b) | \(v(t)>0\) for all \(t>0\) |
| (c) | \(a(t)>0\) for all \(t>0\) |
| (d) | \(v(t)\) lies between \(0\) and \(2\) |
Choose the correct option:
1. (a), (c)
2. (b), (c)
3. (a), (d)
4. (b), (d)
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