Correct option is A
The correct option to fill in the blank is (a)
most magnificent.
Explanation: The sentence implies a comparison among
all comparable works (“the … example to emerge”), so the
superlative degree is required. With evaluative adverbs like “undoubtedly,” English frequently uses the bare superlative (most magnificent) to denote the
highest degree of a quality. (Hindi:
most magnificent =
सबसे भव्य/शानदार.)
Example: It is undoubtedly the
most magnificent example of the artist’s mature style.
Explain why other options are incorrect.
· (b)
magnificently: adverb; modifies verbs/adjectives, not a noun (
example) (Hindi:
शानदार तरीके से).
· (c)
magnificent: positive degree; does not capture the sense of the best among all (Hindi:
भव्य/शानदार).
· (d)
more magnificent: comparative degree; compares two, not the entire set (Hindi:
अधिक भव्य).