Correct option is B
Correct Answer: B) DCBA
Formed Sentence:
Changes in agricultural patterns and water availability force people to migrate to urban areas.
Why This Sequence Is Correct
1. (D) begins the sentence logically with the subject: changes in agricultural...
2. (C) completes the subject phrase: patterns and water availability.
3. (B) introduces the verb phrase: force people to.
4. (A) completes the action: migrate to urban areas.
The sentence becomes grammatically correct and contextually meaningful.