Correct Answer:
Option B - Lignified cork cells are found in the roots and stems of Rauwolfia (Rauvolfia Serpentina) a plant used in traditional medicine for its antipsychotic, antihypertensive and antiarrhythmic properties.
B. Lignified cork cells are found in the roots and stems of Rauwolfia (Rauvolfia Serpentina) a plant used in traditional medicine for its antipsychotic, antihypertensive and antiarrhythmic properties.