Correct option is A
Option
(a) is the correct order of the given sentences.
Why ABCD is correct (grammar reasoning):
·
A (Subject): “the painter” establishes the subject first.
·
B (Verb phrase): “has completed” is the present perfect verb phrase following the subject.
·
C (Object): “the mural” is the direct object of “has completed.”
·
D (Adverb): “beautifully” (manner adverb) is naturally placed
after the object in SVO sentences:
Subject + Verb + Object + Adverb (manner).
· Thus,
A–B–C–D → “The painter has completed the mural beautifully.”