Which statement is true about the motion to commit or refer?

The motion to commit or refer is indeed debatable and amendable, which makes option B the accurate choice. This motion allows a group to send a resolution or other main motion to a committee for further consideration. Since it is debatable, members can discuss the merits of sending the motion to a committee, which encourages dialogue about the pros and cons of this action.

Additionally, the motion is amendable, meaning that changes can be made to it before it is put to a vote. This flexibility is important in parliamentary procedure, as it allows members to tailor the specifics of the referral, including the committee that will handle the motion or any instructions that accompany the referral.

In contrast, the other options lack this combination of characteristics. The motion to commit is not limited to requiring a certain type of vote or restricts the number of times it can be made in a meeting, making option B the most comprehensive and accurate description of the motion's properties.