The correct option is C cafe.
A full stop should be placed at the end of a declarative or imperative sentence. A declarative sentence states a simple fact or argument whereas, an imperative sentence is one that gives a command.
The given sentences can be defined as declarative sentences and a period should be used between the two. Thus, the correct answer is Option C.
The other remaining options are incorrect. Dashes, like commas and colons are used to indicate emphasis, or interruption, or change of thought.