Arrange the following words as per their order in an English dictionary and choose the one that comes first.
1. Imperturbable
2. Impermeable
3. Imperative
4. Impersonate
5. Imperceptible
1
3, 5, 2, 4, 1
2
1, 2, 3, 4, 5
3
3, 5, 1, 4, 2
4
3, 5, 1, 2, 4