Which one of the following is a frameless bee hive?

Q. Which one of the following is a frameless bee hive?
A. Warre.
B. Top bar.
C. Langstroth.
D. All of the above.
Answer: Top bar.

A. Warre.
B. Top bar.
C. Langstroth.
D. All of the above.
Answer: Top bar.