CAYLEY 2019 Problem 8

Alain travels on the 4 \times 7 grid shown from point P to one of the points A, B, C, D, or E. Alain can travel only right or up, and only along gridlines. To which point should Alain travel in order to travel the shortest distance?

Image

Answer Choices
A. A
B. B
C. C
D. D
E. E