What was an effect of the war between the United States and Mexico? A Mexico tried to annex Texas as its own territory.
B The U. S. gained new states such as California, New Mexico, and Utah.
C The U. S. expanded the territory of Missouri.
D The United States attacked Mexican citizens in Texas.

It's B

Explanation:

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.