Assertion (A): Equisetum is also known as horsetail.
Reason (R): Equisetum is used in the preparation of medicine
Directions: Choose the correct option:
Correct answer: (b) Both assertion(A) and reason(R) are true, but reason(R) is not the correct explanation for assertion.
Horsetail is the common name of Equisetum.
Equisetum is believed to have multiple medicinal properties and has been traditionally used to treat various conditions.
Hence, the correct option is (b).