C is the answer to your question
Answer:
A newsreel is a form of short documentary film, containing news stories and items of topical interest, that was prevalent between the 1910s and the late 1960s. Typically presented in a cinema, newsreels were a source of current affairs, information, and entertainment for millions of moviegoers.
Explanation:
Whats the question? You have to show a picture of the question i may know it
It basically means to spoil carefully laid plans, For example;
"Don't upset the apple cart by revealing where we're going."