Answer: Option(B) is correct.
Step-by-step explanation:
Exports is a component of GDP, therefore, GDP deflator also includes exports. Hence, if there is an increase in the price of biscuits that is produced by the Japanese company, then as a result the price of exports increases. Therefore, GDP deflator increases and CPI remains unchanged because CPI is only affected by the changes in price of goods and services that are consumed domestically not internationally.