Answer:
A3
Explanation:
Since the title that Alison's Group has made is located in cell A5 which is a merged cell that includes A3:A7 then un-merging these cells would move the title to cell A3 . That is because Excel always moves the information within merged cells to the beginning cell in that merger. Therefore since the beginning cell in this merger is A3 the title will automatically be moved and fit into that cell alone when un-merging.