The UK

A Britain

B Great Britain

C the United Kingdom of Great Britain and Northern Ireland

A this sounds better

B this is the official name of the country 

C the official name of the country is too long to say it in full

A three parts

B four parts 

C five parts

A England, Scotland, Wales, and Northern Ireland 

B Britain, Scotland, Wales, and Northern Ireland 

C England, Scotland, Wales, and Ireland

A it has no parliament

B the head of the country is a queen or a king 

C there are kings and queens, princes and princesses in the UK

A England

B Scotland 

C Wales

A People in each part speak the same language.

B The culture and language are different in different parts of the country.

C They have their own national soccer team in different parts of the UK.

A England, Northen Ireland, Wales

B The UK,Scotland, Walse

C England, Walse, Scotland

A on the British Isles

B in North America

C in the South East of Europe

A the Queen

B the Parliament

C the President