1. Intervention 2. Intertwine 3. Interview  4. Intervene

First 5 letters of all the words are same so verifying the sixth letter.

The sixth letter of Intertwine is 't' which comes first in alphabetical order. So Intertwine is placed first.

The first 6 letters for remaining words are same so verifying the seventh letter. The seventh letter of Interview is 'i' which comes after 'e'. So Interview is placed last.

Among Intervention and Intervene, the ninth letter of Intervene comes before 't' in alphabetical order. So Intervene is placed second and Intervention is placed third.

$$\therefore\ $$The order of the given words is Intertwine, Intervene, Intervention, Interview

Hence, the correct answer is Option B