What is necessary for a friendly amendment to be made during a meeting?

A friendly amendment is a proposed change to a motion that is agreed upon by the original proposer and the majority of members present. For a friendly amendment to move forward, it typically must be adopted through a vote or unanimous consent, indicating that all parties are in agreement and there is no need for a formal debate. This process streamlines the amendment process and allows for modifications that can enhance the original motion without significant opposition.

The other options suggest requirements that are not specifically necessary for friendly amendments. While support of the presiding officer may help facilitate the discussion, it is not a formal requirement. Similarly, a two-thirds approval is necessary for some other types of motions or amendments, but not for friendly amendments, where the focus is on mutual agreement rather than a formal voting threshold. Lastly, while deliberation in an open forum can be beneficial for clarifying aspects of the amendment, it is not mandatory for the amendment to be considered friendly. Thus, the correct response emphasizes the consensus nature of friendly amendments through voting or unanimous consent.