Observe the morphological process of the formation of the following words: Now analyze the following statements. I. -context- and -tangle- are free roots, while -ident- is a bound root. II. These three words are formed both by prefixation and suffixation. III. In the noun, -ual- and -iz- are derivational suffixes, while in the adverb, -ifi- and -ab- are inflectional suffixes. IV. dis- and en- both have negative meanings. V. The head of the noun is -ation, the head of the verb is en- and the head of the adverb is -ly. The correct statements are

(A) I and III only.
(B) II and IV only.
(C) I and V only.
(D) I, III and V only.
(E) II, III and IV only.