Ideal “bangla bundh” is usually:

Correct option is C

Correct Answer: (c) Trapezoidal in shape
Explanation:
→ Bangla bundh (a fish seed collection device) is ideally trapezoidal for better water flow and fry trapping.
→ Shape helps maintain stability and effective screening.
Information Booster:
→ Used commonly in riverine fish seed collection.
Additional Information (Other Options):
(a), (b), (d): Do not provide optimal hydrodynamic efficiency.