At such referendum, the proposition to be submitted shall be printed in plain prominent type on ballots separate and distinct from ballots used for any other office or question and shall read as follows:
“Check one of the following:
”(1) The City of _______ shall adopt and operate under the council-manager form of government pursuant to the ‘Council-Manager Act of 1991.’
“Yes ( ).
“or ”(2) The City of _______ shall adopt and operate under the mayor-council form of government pursuant to Section 11-43-1 et seq.
“Yes ( ).”
The voter shall mark his ballot with a cross mark (X) after the proposition which expresses his choice. If voting machines are used at any voting place in such election, the above propositions may, at the discretion of the election commission or other body or official having charge of the conduct of municipal elections, be submitted as separate propositions on voting machines so used.