单选题 He takes a walk along the river after supper every day ______ his health.
A. for the sake of B. for the profit of
C. for the interest of D. because of

【正确答案】 A

【答案解析】[考点] 介词短语辨异。for the sake of为了……；for the profit of为了谋取利益/润；interest兴趣，业余爱好，常用in the interest(s)of为了……的缘故，为了；because of因为，由于。