In which of the following countries was the 21st FIFA World Cup-2018 held?

Correct option is B

The correct answer is (b) Russia.
· The 21st FIFA World Cup was held in Russia in 2018.
· It was the first time the tournament took place in Russia and also the first time it was held in Eastern Europe.
· The tournament took place from 14 June to 15 July 2018, with 32 teams from around the world competing.
· France won the championship by defeating Croatia in the final.
Explanation of Other Options:
· Brazil: Brazil hosted the 20th FIFA World Cup in 2014.
· Spain: Spain has not hosted the World Cup in recent history.
· Argentina: Argentina hosted the 1978 FIFA World Cup, not the 2018 edition.