In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
One who is beyond reform

Options

A. optimistic
B. incorrigible
C. indefatigable
D. notorious

Answer

B

Explanation

incorrigible (Adj.) : having bad habits which cannot be changed or improved, incurable
optimistic (Adj.) : expecting good things to happen or something to be successful, positive
indefatigable (Adj.): never giving up or getting tired of doing something
notorious (Adj.): well-known for being bad