Because that's the way it works and there is probably another strong reason
"Inaugurates" most often means to introduce or to start something, for example a policy or period. It can also specifically refer to admitting someone into public office (i.e. "We will inaugurate the new president next week"), or signifying the first use of a public organization or project (i.e. "Will you be attending the park's inauguration on May 1st?").
Answer:
B
Because we had today off, we decided to go to the beach.
Your answer is B Hope this helps