A Bank's Loan Officer Rates Applicants for Credit $P _ { 60 }$

A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50 . Find $P _ { 60 }$ , the score which separates the lower $60 \%$ from the top $40 \%$ .

A) $212.5$
B) $211.3$
C) $187.5$
D) $207.8$