Two Friends,Mary and Dean,are Hiking in the Colorado Mountains When

Two friends,Mary and Dean,are hiking in the Colorado mountains when a dog being walked by its owner,Wally,who is from Wyoming,bites Dean,causing injury.Mary was not disturbed physically or emotionally,but wants Dean to sue Wally.Dean does not want to incur the cost.Which of the following is true?

A) Mary does not have standing to sue Wally, the owner of the dog.
B) Mary will have standing only if she files the lawsuit in Wyoming.
C) Whether Mary has standing depends on whether Mary files the suit in state or federal court.
D) Mary has standing if Dean consents to Mary filing the suit.
E) Mary has standing if Wally agrees she can sue instead of Dean.