Which of the following is BEST classified as a centripetal force? O National flag
O Internal boundary disputes
O Religious divisions
O Separatism
O Multiple nationalities

Plz put the answer choices thx.

The us is first  the  u.s. economy  remains the  largest in the world  in terms of nominal  gdp. however, the  u.s. economy  loses its spot as the number one  economy  to china when  measured  in terms of  gdp  based on ppp. in these terms, china's  gdp  is $23.19 trillion exceeds the  u.s. gdp  of $19.42 trillion