Which of the following is not a violation of the Transportation code?

a. a nonprofit organization has a permit to serve coffee and snacks to drivers on Memorial day weekend at a public rest area and remains in the rest area for 72 hrs.
b. a person erects a tent at a scenic overlook.
c. A family parts their travel trailer on the premises of a public picnic area for 36 hrs
d. A person sets up an information booth without permit at a public roadside park to inform visitors about a local rodeo