Entalassen is a German word referring to the term to release something.
A story, poem or picture that can reveal a hidden meaning or message typically a moral or something too do with politics.
The given clause, "whoever wins the contest a savings bond" is a subordinate or a dependent clause. This kind of clause does not convey a complete thought and needs the main sentence in order to make it understandable. This subordinate clause is connected to the main clause with the subordinating conjunction "whoever".
The best answer is C) Heidi has piano lessons every Friday at 6 p.m.