A man wearing jeans and carrying a backpack is walking down a paved walkway does not indicate that he has food in his backpack.
This justifies what answer for what question? Q & A:
Can we conclude from "A man wearing jeans and carrying a backpack is walking down a paved walkway." that "A man has food in his backpack."?
Options:
- yes
- no
- it is not possible to tell
it is not possible to tell