\textbf{Since this is a fair coin, the probability to get a head is always 0.5.} 
\textbf{If I toss a fair coin 5000 times} 

A: \textbf{and I get anything other than 2500 heads, then something is wrong with the way I flip coins.} 
B: \textbf{the proportion of heads will be close to 0.5} 
C: \textbf{a run of 10 heads in a row will increase the probability of getting a run of 10 tails in a row.} 
D: \textbf{the proportion of heads in these tosses is a parameter} 
E: \textbf{the proportion of heads will be close to 50.} 