Select the words which are the adverb form of the word:

(A) Gigantic
(B) Lovely
(C) Lovingly
(D) Oratory
(E) Frantically

Choose the correct answer from the options given below:

(C) & (E) Only

The correct answer is Option (2) → (C) & (E) Only

(A) "Gigantic" and (B) "Lovely" are adjectives, and they do not have corresponding adverb forms in English.
(C) "Lovingly" is the adverb form of "loving." It describes how something is done in a loving manner.
(D) "Oratory" is a noun, and its adverb form is "oratorically," which describes something related to oratory or public speaking.
(E) "Frantically" is the adverb form of "frantic." It describes how something is done in a frantic, hurried, or wild manner.

So, the correct options are (C) and (E) as they represent the adverb forms of their respective words, while (A) and (B) are adjectives, and (D) is a noun, so they do not have adverb forms.