H.M.S. Beagle is associated with which scientist?

The correct answer is Option (2) → Darwin

H.M.S. Beagle was the sail ship on which Charles Darwin made a sea voyage round the world. From what he saw on this voyage, Darwin concluded that living forms share similarities with each other and with forms that lived millions of years ago, and that life forms have evolved gradually. These observations led to his theory of evolution by natural selection.

NCERT Extract:
Evolution of Life Forms – A Theory – “… All these ideas were strongly challenged during the nineteenth century. Based on observations made during a sea voyage in a sail ship called H.M.S. Beagle round the world, Charles Darwin concluded that existing living forms share similarities to varying degrees not only among themselves but also with life forms that existed millions of years ago. Many such life forms do not exist any more.”