Exercise is something that should be
a. painful b. inconvenient c. enjoyable d. exhausting

C, because exercise is very good for your health , exercise is one of the things that keep your body at a maintained weight . and if you want to lose weight , exercise is helpful for that . IF NOT THEN  do it because its healthy for you . 

After a long conversation with my father, i learned to take my responsibilities more seriously.hope this : )

Be by his side : ) make him feel better