Correct Answer - Option 3 : aacdabdebb
Checking options one by one:
1) cdbb / are / aabb / cde / aabb / cde → doesn't follow any pattern
2) dabb / bde / aebb / cba / aaac / cde → doesn't follow any pattern
3) aabb / cde / aabb / cde / aabb / cde → follows a pattern
4) abbb / dae / aacb / cde / aabb / cde → doesn't follow any pattern
Hence, "aacdabdebb" is the correct answer.