The correct option is B that has dark blue and green wings
An adjective clause is a group of words that contain a subject and a
verb, and it functions as an adjective that modifies a noun or a
pronoun. Adjective clauses usually begin with relative pronouns such as
who, whom, whose or a relative adverb like when, where and so on.
Option B is correct because it begins with a relative pronoun 'that' that performs as the subject and the verb "has". It modifies the noun "butterfly".
Option A is incorrect because the clause has changed in meaning.
Option C has a phrase, :without" which has changed in meaning. Hence C is incorrect.
Option D is incorrect because the answer lies in B.