Which of the following would not be covered by liability portion of your homeowner's insurance?

a.

Your neighbour sues you because you have a tree he feels will fall on his home and damage it.

b.

While your accountant is visiting you, she trips on your carpet, breaks her leg and sues you.

c.

Your dog bites a guest and the guest sues you.

d.

An uninvited salesman walking up your sidewalk trips and falls and sues you.