Refer to the exhibit
While you troubleshoot a connectivity issue to a PC behind R1, you enter the show access-lists command to generate this output.
Which reason for the problem is most likely true?
A . The permit all ACL entry on R1 is inactive.
B . The ACL of R1 is misconfigured.
C . A deny all ACL entry is currently active on R1.
D . An implicit deny is causing R1 to block network traffic.
Answer: D