He has resigned his job and burnt his boats so far as government service is concerned

Options

A. felt dejected
B. blasted his hopes
C. ruined himself
D. left no means of retreat

Answer

D

Explanation

burnt his boats: to do some thing that makes it impossible to return to the previous situation later retreat: to move away/back . Turning down one job before you have another leads to burning your boats. The best option is left no means of retreat.