Respuesta :
The second and third answers have the wrong definitions to the words implicit/explicit, so those are already wrong.
I believe the fourth answer is correct, due to this paragraph never directly stating why it's being written. It only has suggestions and descriptions about walking as an exercise.
I believe the fourth answer is correct, due to this paragraph never directly stating why it's being written. It only has suggestions and descriptions about walking as an exercise.
Answer:
It is implicit because it is not directly stated in the paragraph.