You are very hungry, so you decide to eat what appear to be edible berries. When performing the universal edibility test, what should you do?

a. Do not eat for 2 hours before the test.

b. If the plant stings your lip, confirm the sting by holding it under your tongue for 15 minutes.

c. If nothing bad has happened 2 hours after digestion, eat half a cup of the plant and wait again.

d. Separate the plant into its basic components and eat each component, one at a time.