The correct answer is D. Chastise : Erring.
Reproof and scold are both words that mean to express disapproval or criticism. Salient and prominent both mean to be noticeable or important. Romantic and strong do not have a similar relationship. Respite and spite are not related.
Chastise means to punish or scold someone severely. Erring means to make a mistake. So, chastise and erring are related in the same way that reproof and scold are related.