Lobefins evolved into the first:

The correct answer is Option (3) → Amphibians

About 350 million years ago, some fish with stout and strong fins could move on land and go back to water. These fish are called lobefins, and the Coelacanth caught in South Africa in 1938 was one of them.

Option (1) Fish — Incorrect. Lobefins were themselves fish, so they did not evolve into the first fish. Jawless fish had already evolved before them.

Option (2) Reptiles — Incorrect. Reptiles came later. They evolved from the amphibians and laid thick-shelled eggs that do not dry up in the sun.

Option (3) Amphibians — Correct. The lobefins evolved into the first amphibians, which lived on both land and water. They were the ancestors of modern frogs and salamanders.

Option (4) Birds — Incorrect. Birds arose much later. NCERT says some people believe most dinosaurs evolved into birds.

NCERT Extract:
A Brief Account of Evolution – “… Fish with stout and strong fins could move on land and go back to water. This was about 350 mya. In 1938, a fish caught in South Africa happened to be a Coelacanth which was thought to be extinct. These animals called lobefins evolved into the first amphibians that lived on both land and water. There are no specimens of these left with us. However, these were ancestors of modern day frogs and salamanders. The amphibians evolved into reptiles.”