Which sentence gives the impression that amusement parks want to provide their patrons with the ultimate thrilling experience?
a. "on many of these attractions, riders are displaced from a motionless state of rest into high-speed acceleration."
b. "the inertia that rams riders into their seats during abrupt changed in velocity and the feeling of weightlessness during states of free fall is experienced on ride after ride throughout the amusement park."
c."thrill-seekers patronize amusements parks to experience sensations intentionally generated by roller coasters and other attractions."
d."amusement parks are some of the only locations where this variety of excitement can be experienced."