The football used in the FIFA World Cup Football Championship, 2014 is

Each edition of the FIFA World Cup is played with a unique official match ball manufactured by Adidas, FIFA's official ball supplier since 1970, with a distinct name assigned to that specific edition. Answering this kind of question correctly means matching the exact tournament year/host to ITS assigned ball name, not to any other edition's ball.

For the FIFA World Cup hosted in Brazil in 2014, Adidas introduced the ball named Brazuca, spelled Brazuka in this question, a name derived from a Portuguese colloquial term evoking Brazilian identity and style. This was the ball used throughout the 2014 tournament, from the group stage through the final.

• Jabulani was the Adidas ball for the preceding World Cup, South Africa 2010, not the 2014 edition asked about here.

• Nike is a rival sportswear brand; it has never held the FIFA World Cup official-ball supply contract, which has belonged to Adidas since 1970.

• "None of these" does not apply because Brazuca correctly matches the specified year.

Hence, the official football used at the FIFA World Cup Football Championship, 2014 was Brazuca (Brazuka).