1.f (t) = 1 for -2 ≤ t ≤ 3
2.f (t) = 1 for 2 ≤ t ≤ 3
3. f (t) = 1 for -2 ≤ t ≤ -1
4.f (t) = 1 for -2 ≤ t ≤ 0
Answer:1