The word "dutifully" is closest in meaning to-

1. Meaning of "Dutifully":

- "Dutifully" is an adverb that describes how someone performs a duty or obligation. It implies acting in accordance with duty or responsibility, often with diligence, dedication, and obedience.

2. Synonym:

- The closest synonym provided is "faithfully." "Faithfully" is also an adverb that implies doing something with loyalty, trustworthiness, and commitment, often in fulfillment of a duty or obligation.

3. Similarity in Meaning:

- Both "dutifully" and "faithfully" suggest a sense of loyalty, dedication, and commitment to fulfilling responsibilities or obligations. They convey the idea of acting in a conscientious and devoted manner.

Now, let's briefly discuss the other options:

- ক. "unfortunately": This adverb indicates an unfortunate or unlucky situation. It has a completely different meaning from "dutifully" and is not a synonym.

- খ. "recklessly": This adverb describes acting without care or consideration for consequences, often in a careless or irresponsible manner. It is the opposite of "dutifully" and does not convey the same sense of responsibility or dedication.

Given the explanations above, option গ. "faithfully" is the closest in meaning to "dutifully." Both convey a sense of loyalty, dedication, and commitment to fulfilling responsibilities or obligations.