The correct option is A Coward
'One who always runs away from danger' is Option C, Coward. Option A, 'Escapist' is a person who seeks distraction from unpleasant things in life by living in fantasies or dreams. Option B, 'Slacker' is a person who avoids work or effort. Option D, 'Shirker' is a person who avoids his duty or work. Thus, options A, B and D are incorrect and the correct word for the phrase is 'Coward', Option C.