Which is the right option for the tallest and the smallest Gymnosperm plant ?

Q. Which is the right option for the tallest and the smallest Gymnosperm plant?

A.            Eucalyptus and Zamiapygmea

B.            Wolffia globosa and Eucalyptus

C.            Sequoia sempervirens and Zamia pygmea

D.            Sequoia sempervirens and Wolffia globosa

Answer: Sequoia sempervirens and Wolffia globosa