adj. periodic; occasional
-
impenitent
-
intermittent
-
curumdgeon
-
exhume
B
Correct answer
Explanation
'Intermittent' means occurring at irregular intervals, matching the definition 'periodic; occasional'. Options A (impenitent - unrepentant), C (curmudgeon - grumpy person), and D (exhume - dig up) are incorrect parts of speech or meanings.