The Country of Yokovia Does Not Trade with Any Other

The country of Yokovia does not trade with any other country.Its GDP is $30 billion.Its government purchases $5 billion worth of goods and services each year,collects $7 billion in taxes,and provides $3 billion in transfer payments to households.Private saving in Yokovia amounts to $5 billion.What are consumption and investment in Yokovia?

A) $18 billion and $5 billion,respectively
B) $21 billion and $4 billion,respectively
C) $13 billion and $7 billion,respectively
D) There is not enough information to answer the question.