Explanation:

- The term "mesne profits" refers to the profits or benefits accrued by a person in wrongful possession of property, usually owed to the rightful owner.

- Option 1: Shall not

- Mesne profits typically exclude any profits due to improvements made by the person in wrongful possession.

- This option implies such profits are not considered part of mesne profits.

- Option 2: Shall

- Suggests that profits from improvements should be included in mesne profits.

- Option 3: May

- Indicates that profits from improvements could be optionally included in mesne profits.

- Option 4: May not

- Suggests that these profits might not be included, leaving room for discretion.

Answer: Option 1 - Shall not

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