When World War I began in August 1914, many people anticipated that the war would end by Christmas of that year. Which event extended the war into 1915 and beyond?

I think the event that extended the war was when Russia declared war on Austria-Hungary as a sign of friendship to Serbia. Germany then declares war on Russia as a sign of friendship to Austria-Hungary. France as a sign of friendship then declares war on Germany. Britain as a sign of friendship declares war on Germany when they invaded their ally, Belgium.

Explanation:

the answer is c     : )

explanation:

i don't have an explanation because i don't know, but i think the answer is c because i googled it and google is right : ) just kidding google isn't allways right but the answer is still c. i hope this !

calvin taught his followers that human beings needed to follow strict rules to overcome their nature and do good. second choice