The injectable pain-killing drug called Prialt is an improvement over morphine-type drugs because it ____.

A) can easily be extracted from cone snails
B) is less expensive to produce than morphine
C) also removes the memory of pain from the affected person
D) is not addictive
E) is from invertebrates

Prialt

A powerful painkiller derived from cone snail venom, used for treating severe chronic pain in certain conditions.

Cone Snails

Marine snails known for their beautifully colored shells and potent venom, which they use to immobilize prey.

Morphine

A powerful opiate analgesic drug derived from the opium poppy, used for pain relief.