The correct answer is: A. Malayalam.
Lakshadweep is an Indian archipelago in the Arabian Sea, off the coast of Kerala. The official language of Lakshadweep is Malayalam, which is also the language spoken by the majority of the population. Malayalam is a Dravidian language, and is closely related to Tamil and Kannada. It is the 22nd most spoken language in the world, with over 35 million speakers.
Malayalam is a rich and complex language, with a long and varied history. It is the language of literature, poetry, and music. It is also the language of everyday life in Lakshadweep.
The other options are incorrect because they are not the official language of Lakshadweep. Marathi is the official language of Maharashtra, India. Tamil is the official language of Tamil Nadu, India. Kannada is the official language of Karnataka, India.