A College Sent a Survey to a Sample of Juniors $\frac { 279 } { 512 }$

A college sent a survey to a sample of juniors.Of the 512 students surveyed,279 live on campus,of whom 110 have a GPA of 2.5 or greater.The other 233 juniors live off-campus,of whom 85 have a GPA of 2.5 or greater.What is the probability that a survey participant chosen at random lives on campus and has a GPA of 2.5 or greater?

A) $\frac { 279 } { 512 }$
B) $\frac { 22 } { 39 }$
C) $\frac { 110 } { 279 }$
D) $\frac { 195 } { 512 }$
E) $\frac { 55 } { 256 }$