The second largest Island of the world is :

Borneo
Madagaskar
New Guinea
Sumatra

The correct answer is (c). New Guinea is the second largest island in the world, after Greenland. It is located in the Pacific Ocean, northeast of Australia. The island is divided between two countries: Indonesia and Papua New Guinea. New Guinea is a mountainous island with a tropical climate. The island is home to a wide variety of plant and animal life, including many species that are found nowhere else in the world.

Option (a), Borneo, is the third largest island in the world. It is located in the Southeast Asian region, between the South China Sea and the Java Sea. Borneo is divided between three countries: Indonesia, Malaysia, and Brunei. The island is home to a wide variety of plant and animal life, including many species that are found nowhere else in the world.

Option (b), Madagascar, is the fourth largest island in the world. It is located in the Indian Ocean, off the coast of Africa. Madagascar is home to a wide variety of plant and animal life, including many species that are found nowhere else in the world.

Option (d), Sumatra, is the sixth largest island in the world. It is located in the Indonesian archipelago, between the Indian and Pacific Oceans. Sumatra is home to a wide variety of plant and animal life, including many species that are found nowhere else in the world.