In which of the following countries, the Christmas festival is celebrated in summer season?

Explanation:

Australia, New Zealand, South Africa, Comoros, Madagascar, Bolivia, Angola, French Polynesia, Papua New Guinea, Paraguay, and Samoa are among the countries that make up the Commonwealth of Nations.

They are all in the Southern Hemisphere, hence the 25^th of December is their summer season.

Final Answer:

The correct option is A i.e New Zealand.