Analyse the following statements and identify the correct options given below.
I. Two kingdom system of classification did not distinguish between the eukaryotes and prokaryotes, unicelluar and multicellular oganisms, and green algae and fungi.
II. The two kingdom system of classification used for a long time was found inadequate.
A. I is true, but II is false
B. I is false , but II is true
C. Both I and II are true
D. Both I and II are false