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: Louis van Gaal arrived at his press conference on Thursday apologising for still being in what he called his 'work clothes'. That, however, transpired to the least of his worries. Soon after, he was embroiled in what we can politely describe as a lively exchange about the nature of his relationship with his assistant Ryan Giggs. Pictures of a rather underwhelmed Giggs at St James' Park on Wednesday and some quotes from his old friend Paul Scholes had given weight earlier in the day to some recent chatter about the United icon's thoughts on Van Gaal's style of play and indeed his own future.Ryan Giggs did not celebrate Manchester United's 1-0 win at NewcastlePaul Scholes hinted his former team-mate was not happy at being No 2Louis van Gaal reacted angrily to suggestions of a problem between pairRed Devils face Arsenal in FA Cup quarter-final on Monday eveningDutch manager believes Jonny Evans did not mean to spit at Papiss Cisse 
 Question:The _ boss gave a tetchy press conference ahead of Monday's FA Cup clash with Arsenal.

United