Nil 
Pip and Bud are playing a game. Each time Pip has to flip a £$$1$$ coin. If Pip gets a head, Bud will pay him £$$1$$. If Pip gets a tail, Bud will take one of her coins. After they played $$50$$ rounds, how much would you expect Pip to gain or lose? 
Options:
A. Gaining £$$50$$ 
B. Losing £$$50$$ 
C. Gaining £$$25$$ 
D. Losing £$$25$$ 
E. Break Even 