Which of the following best explains how the alliance system contributed to the outbreak of world war 1 -alliances had limited trade causign economic problems -rival alliances had promoted tension rather then security -alliances had failed to prevent food shortages -allies had been plotting to each other conquer neighboring territories

Rival alliances had promoted tension rather than security

Explanation:

The opposing coalition brought about pressure instead of safety. Allies, however, did not conquer with other different territories; instead, it left the Germany alliance stranded between two prominent partners that were likely to come in any moment. Further other countries had a coalition that resulted in tension because of the outlook of the nation. For instance, Germany allied to Australia-Hungary and Russia. Nevertheless, Ally encouraged them to continue with the fight even though it caused tension to other countries.

i think it would be a