Topic: Adverb (ক্রিয়াবিশেষণ),

Best Answer Explained in Below-:

The correct answer to the sentence "My mother always dresses ___" is "D) beautifully." The reason for this choice lies in the function of the word needed to complete the sentence.

In English grammar, "dress" in this context is a verb, and we need an adverb to modify it, telling us how the action of dressing is performed. The word "beautifully" is an adverb derived from the adjective "beautiful." Adverbs typically end in "-ly" and are used to describe verbs, adjectives, or other adverbs, providing more detail about the manner in which an action is done.

In contrast, the other options are not suitable for this sentence:

- A) "beauty" is a noun and cannot modify the verb "dresses."
- B) "beautify" is a verb, which does not fit grammatically.
- C) "beautiful" is an adjective and, while it describes the quality of someone or something, it cannot be used to modify a verb like "dress."

Thus, the correct structure requires "beautifully" to convey that your mother dresses in a beautiful manner, making it the precise and grammatically correct choice.