5. Martina plays chess. She has played 15 games this season, out of which she has won nine. She has five more games to play. What will her success rate be in this season if she wins all five remaining games?
A $60 \%$
B $65 \%$
C $70 \%$
D $75 \%$
E $80 \%$
5. C If she wins five more games, then she will have won 14 out of 20 , which is equivalent to $\frac{7}{10}$ or $70 \%$.