Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Nicolas Hamilton, the younger brother of Formula One world champion Lewis Hamilton, is to compete in this season’s British Touring Car Championship. Hamilton, who has cerebral palsy, will make his debut in June and becomes the first disabled driver to compete in the series. The 22-year-old will take part in five of the 10 rounds at Croft, Snetterton, Rockingham, Silverstone and the final meeting of the championship at Brands Hatch. Scroll down for video... Nicolas Hamilton posed a picture with his British Touring Car. The Briton said 'it's been a tough few months' Nicolas Hamilton, pictured with his older brother Lewis at the Indian Grand Prix in 2013Nicolas Hamilton will take part in five of the 10 championship roundsThe 22-year-old lives with the neurological condition cerebral palsyHe competed in the Renault Clio Cup in 2011 and 2012Nicolas is the younger brother of F1 world champion Lewis Hamilton 
 Question:Nicolas' brother Lewis Hamilton is bidding to become the first _ to successfully defend his Formula One title.

Briton