Which of the following motions does not require a second?

The motion to withdraw does not require a second because it allows the member who made the original motion to remove that motion from consideration by the assembly without requiring approval from others. This reflects the principle that a member has the right to retract their own proposal without needing additional support, thereby streamlining the process for the assembly.

In contrast, the other motions mentioned are formal proposals that affect the assembly's business, and thus require a second to indicate that at least one other member supports bringing the motion to discussion. This requirement helps ensure that time is not spent discussing motions that have no support from the group.