In the following figure, rectangle represents Physicians, circle represents Cartoonists, triangle represents Poets and square represents Golfers. Which set of letters represents Physicians who are Golfers?
A flock of migrating geese flies 20 km East, then turns South and flies 50 km, then turns East and flies 40 km, and turns to its left and flies 50 km. Where is the flock now with reference to its starting position?