Correct option is B
FC Barcelona won the Spanish La Liga title in the 2018-2019 season. They secured the championship with a strong performance throughout the season.
Real Madrid CF: While a prominent club, they did not win the La Liga title in 2019.
Liverpool FC: Competes in the English Premier League, not La Liga.
Manchester United FC: Also competes in the English Premier League.
Thus, the correct answer is (b) FC Barcelona.
